EPA 2020 COVID-19 WATER SECTOR SURVEY Appendix E: Data Tables for American Indian Utilities ^ June 2021 &EPA J 810-R-21-001 ------- Notes on Appendix E Appendices C-G present tables with detailed findings from the EPA 2020 COVID-19 Water Sector Survey. This appendix, Appendix E, presents findings specifically for American Indian utilities. Each table includes findings for subgroups based on size (population served). The order of presentation in this appendix follows the order of questions in the survey (see Appendix B). The title of each table generally includes the applicable survey question number and the text of the question itself (or a close paraphrase). EPA used financial data from Part D of the survey to generate some derived measures. The tables presenting these measures are labeled as "calculated" rather than labelled with a question number. Some questions asked survey participants specifically about experiences from January 2020 to the present day, or from present day to December 2020. For these questions, "January to the Present" or "Present to December" is listed above each table to show the time period covered by the table. In most cases, findings are presented as point estimates and 95 percent confidence intervals. For an explanation of confidence intervals, see the discussion of methodology in Appendix A. Several questions asked respondents to provide responses on a scale. For example, questions Bl.1.1 and B2.1.1 asked respondents to rank the severity of their treatment chemical shortages as "no impact," "slight impact," "moderate impact," or "severe impact." EPA calculated a mean score for each such question by assigning numeric values to the responses (for example, 0 for no impact, 1 for slight impact, 2 for moderate impact, and 3 for severe impact) and averaging the results. Each table lists the number of observations, which is the number of responses received from survey participants to a given question or response option. The quantitative findings presented in the tables are weighted to provide national estimates, using weightings calculated and assigned to each utility type and size subgroup. For more information on the weightings, see the discussion of methodology in Appendix A. Blank cells indicate that no applicable responses were received. "N/A" indicates that a confidence interval cannot be calculated because there was no variance in responses. E-2 ------- Table E.l. Question Bl.l: What kinds of shortages or supply chain disruptions did your organization experience from January 2020 through present day? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Treatment Chemicals 12.9% 15.2% 13.6% 0.0% 19.7% 13.3% 2.0% - 51.6% 2.4% - 57.0% 5.4% - 30.3% N/A - N/A 4.9% - 53.6% 6.9% - 24.0% PPE 35.3% 36.7% 68.1% 39.9% 68.7% 56.2% 13.8% - 65.0% 12.2% - 70.7% 50.1% - 82.0% 13.2% - 74.4% 34.9% - 90.0% 44.7% - 67.0% Durable Goods and Other 12.9% 15.2% 23.7% 8.7% 20.4% 19.0% Equipment and Supplies 2.0% - 51.6% 2.4% - 57.0% 12.1% - 41.3% 1.7% - 34.9% 5.3% - 54.0% 11.4% - 30.0% None 38.8% 48.1% 31.9% 51.4% 31.3% 36.8% 14.6% - 70.3% 18.9% - 78.6% 18.0% - 49.9% 20.6% - 81.1% 10.0% - 65.1% 26.3% - 48.7% Observations 8 7 29 7 9 60 N/A: confidence interval could not be calculated. E-3 Table E.1 Page 1 of 1 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Carbon dioxide Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 Ferric chloride Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.120 -0.039 - 0.278 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.059 -0.021 - 0.138 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 92.1% 74.8% - 97.9% 100.0% N/A - N/A 100.0% N/A - N/A 96.1% 86.7% - 99.0% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 3.8% 0.6% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 1.9% 0.3% - 11.1% Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 E-4 Table E.2 Page 1 of 6 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Fluoride Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 Gaseous chlorine Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.120 -0.039 - 0.278 0.000 0.000 - 0.000 0.139 -0.081 - 0.358 0.075 -0.008 - 0.158 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 92.1% 74.8% - 97.9% 100.0% N/A - N/A 93.1% 71.0% - 98.7% 95.3% 86.6% - 98.5% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 3.8% 0.6% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 1.9% 0.3% - 11.1% Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 6.9% 1.3% - 29.0% 2.8% 0.7% - 10.4% Severe(3) Observations 8 7 29 7 8 59 E-5 Table E.2 Page 2 of 6 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Liquid oxygen Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 8 7 29 7 8 59 Lime Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 E-6 Table E.2 Page 3 of 6 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Orthophosphate Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 Polymers Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.120 -0.039 - 0.278 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.059 -0.021 - 0.138 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 92.1% 74.8% - 97.9% 100.0% N/A - N/A 100.0% N/A - N/A 96.1% 86.7% - 99.0% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 3.8% 0.6% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 1.9% 0.3% - 11.1% Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 E-7 Table E.2 Page 4 of 6 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Potassium permanganate Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) Observations 8 7 29 7 8 59 Sodium hydroxide Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.081 -0.062 - 0.225 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.040 -0.032 - 0.111 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 95.9% 78.9% - 99.3% 100.0% N/A - N/A 100.0% N/A - N/A 98.0% 88.7% - 99.7% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.1% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.3% Severe(3) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 8 7 29 7 8 59 E-8 Table E.2 Page 5 of 6 ------- Table E.2. Question Bl.1.1: How severe were the treatment chemical shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Sodium Mean score (0 to 3) 0.129 0.152 0.162 0.000 0.000 0.121 hypochlorite -0.093 - 0.352 -0.106 - 0.410 -0.029 - 0.353 0.000 - 0.000 0.000 - 0.000 0.014 - 0.228 No impact (0) 87.1% 84.8% 91.9% 100.0% 100.0% 91.9% 48.4% - 98.0% 43.0% - 97.6% 75.8% - 97.6% N/A - N/A N/A - N/A 81.8% - 96.6% Slight (1) 12.9% 15.2% 0.0% 0.0% 0.0% 4.1% 2.0% - 51.6% 2.4% - 57.0% N/A - N/A N/A - N/A N/A - N/A 1.1% - 14.0% Moderate (2) 0.0% 0.0% 8.1% 0.0% 0.0% 4.0% N/A - N/A N/A - N/A 2.4% - 24.2% N/A - N/A N/A - N/A 1.1% - 12.9% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 8 59 N/A: confidence interval could not be calculated. E-9 Table E.2 Page 6 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Carbon dioxide Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Ferric chloride Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 2 2 E-10 Table E.3 Page 1 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Fluoride Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Gaseous chlorine Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 0.0% N/A - N/A 82.5% 82.5% - 82.5% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 2 1 3 E-11 Table E.3 Page 2 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Liquid oxygen Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Lime Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 E-12 Table E.3 Page 3 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Orthophosphate Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Polymers Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 2 2 E-13 Table E.3 Page 4 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Potassium permanganate Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Sodium hydroxide Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 100.0% N/A - N/A 100.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 E-14 Table E.3 Page 5 of 6 ------- Table E.3. Question Bl.1.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Sodium Unavailable from 0.0% 0.0% 0.0% 0.0% hypochlorite supplier(s) N/A - N/A N/A - N/A N/A - N/A N/A - N/A Delayed / backordered 100.0% 100.0% 0.0% 51.0% from supplier(s) N/A - N/A N/A - N/A N/A - N/A 12.2% - 88.6% Transportation / 0.0% 0.0% 100.0% 49.0% distribution difficulties N/A - N/A N/A - N/A N/A - N/A 11.4% - 87.8% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 2 4 N/A: confidence interval could not be calculated. E-15 Table E.3 Page 6 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Carbon dioxide Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 2 Ferric chloride Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 48.7% 48.7% - 48.7% 48.7% 48.7% - 48.7% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 51.3% 51.3% - 51.3% 51.3% 51.3% - 51.3% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 2 3 E-16 Table E.4 Page 1 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Fluoride Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Gaseous chlorine Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 48.7% 48.7% - 48.7% 0.0% N/A - N/A 40.2% 40.2% - 40.2% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 51.3% 51.3% - 51.3% 0.0% N/A - N/A 42.3% 42.3% - 42.3% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 3 1 3 E-17 Table E.4 Page 2 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Liquid oxygen Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Lime Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 2 E-18 Table E.4 Page 3 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Orthophos- phate Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Polymers Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 48.7% 11.8% - 87.1% 48.7% 11.8% - 87.1% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 51.3% 12.9% - 88.2% 51.3% 12.9% - 88.2% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 3 1 4 E-19 Table E.4 Page 4 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Potassium perman- ganate Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 Sodium hydroxide Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 0.0% N/A - N/A 0.0% N/A - N/A Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 100.0% N/A - N/A 100.0% N/A - N/A Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 2 E-20 Table E.4 Page 5 of 6 ------- Table E.4. Question Bl.1.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Sodium Found alternative supplier 0.0% 0.0% 0.0% 0.0% hypochlorite N/A - N/A N/A - N/A N/A - N/A N/A - N/A Drew down existing inventory 100.0% N/A - N/A 100.0% N/A - N/A 0.0% N/A - N/A 51.0% 11.5% - 89.3% Switched chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Sought help from other utilities 0.0% 0.0% 100.0% 49.0% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A N/A - N/A 10.7% - 88.5% Coordinated with local or state 0.0% 0.0% 0.0% 0.0% 0.0% emergency management agency N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 4 2 8 N/A: confidence interval could not be calculated. E-21 Table E.4 Page 6 of 6 ------- Table E.5. Question Bl.2.1: How severe were the personal protective equipment shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All N95 masks Mean score (0 to 3) 0.586 0.215 1.233 0.399 1.237 0.914 and/or 0.085 - 1.087 -0.057 - 0.487 0.800 - 1.665 0.045 - 0.753 0.389 - 2.085 0.658 - 1.170 elastomeric No impact (0) 64.7% 78.5% 40.3% 60.1% 46.5% 52.0% respirators 34.9% - 86.2% 42.2% - 94.8% 24.5% - 58.4% 25.6% - 86.8% 18.7% - 76.7% 40.6% - 63.1% Slight (1) 12.0% 21.5% 19.8% 39.9% 6.9% 19.1% 2.0% - 48.0% 5.2% - 57.8% 9.3% - 37.4% 13.2% - 74.4% 1.3% - 29.0% 11.3% - 30.5% Moderate (2) 23.3% 0.0% 16.2% 0.0% 22.8% 14.5% 6.6% - 56.5% N/A - N/A 7.0% - 33.0% N/A - N/A 5.8% - 58.5% 7.7% - 25.6% Severe(3) 0.0% 0.0% 23.7% 0.0% 23.7% 14.4% N/A - N/A N/A - N/A 12.0% - 41.4% N/A - N/A 6.2% - 59.4% 7.9% - 24.9% Observations 8 7 29 7 8 59 Alternative Mean score (0 to 3) 0.347 0.152 0.681 0.000 0.702 0.495 mask -0.065 - 0.758 -0.106 - 0.410 0.404 - 0.958 0.000 - 0.000 0.178 - 1.226 0.318 - 0.672 options No impact (0) 76.7% 84.8% 51.6% 100.0% 46.5% 64.1% (surgical, 43.5% - 93.4% 43.0% - 97.6% 34.1% - 68.7% N/A - N/A 18.7% - 76.7% 51.6% - 74.9% cloth, etc.) Slight (1) 12.0% 15.2% 28.7% 0.0% 36.7% 22.4% 2.0% - 48.0% 2.4% - 57.0% 15.2% - 47.6% N/A - N/A 13.9% - 67.6% 13.6% - 34.6% Moderate (2) 11.3% 0.0% 19.7% 0.0% 16.8% 13.5% 1.8% - 46.9% N/A - N/A 9.2% - 37.3% N/A - N/A 2.8% - 58.1% 7.0% - 24.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 8 59 E-22 Table E.5 Page 1 of 3 ------- Table E.5. Question Bl.2.1: How severe were the personal protective equipment shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Face shield Mean score (0 to 3) 0.466 0.152 1.100 0.599 0.543 0.758 and/or 0.054 - 0.878 -0.106 - 0.410 0.689 - 1.512 0.003 - 1.195 0.004 - 1.082 0.517 - 0.999 protective No impact (0) 64.7% 84.8% 44.5% 60.1% 62.4% 56.7% eye wear 34.9% - 86.2% 43.0% - 97.6% 28.3% - 62.0% 25.6% - 86.8% 31.5% - 85.7% 45.3% - 67.5% Slight (1) 23.9% 15.2% 17.3% 20.0% 20.8% 18.8% 7.3% - 55.6% 2.4% - 57.0% 7.8% - 34.1% 3.2% - 65.4% 7.7% - 45.2% 11.4% - 29.5% Moderate (2) 11.3% 0.0% 21.9% 20.0% 16.8% 16.5% 1.8% - 46.9% N/A - N/A 10.4% - 40.3% 3.2% - 65.4% 2.8% - 58.1% 9.2% - 27.7% Severe(3) 0.0% 0.0% 16.3% 0.0% 0.0% 8.0% N/A - N/A N/A - N/A 6.7% - 34.7% N/A - N/A N/A - N/A 3.2% - 18.6% Observations 8 7 29 7 8 59 Nitrile Mean score (0 to 3) 0.460 0.341 1.065 0.399 1.098 0.811 and/or latex -0.129 - 1.050 -0.042 - 0.724 0.676 - 1.455 0.045 - 0.753 0.273 - 1.923 0.558 - 1.064 gloves No impact (0) 76.7% 78.5% 39.8% 60.1% 46.5% 53.7% 43.5% - 93.4% 42.2% - 94.8% 24.2% - 57.7% 25.6% - 86.8% 18.7% - 76.7% 41.7% - 65.2% Slight (1) 12.0% 15.2% 29.9% 39.9% 13.9% 24.1% 2.0% - 48.0% 2.4% - 57.0% 16.4% - 48.1% 13.2% - 74.4% 4.2% - 37.0% 15.1% - 36.1% Moderate (2) 0.0% 0.0% 14.3% 0.0% 22.8% 9.7% N/A - N/A N/A - N/A 5.6% - 31.8% N/A - N/A 5.8% - 58.5% 4.5% - 19.7% Severe(3) 11.3% 6.3% 16.0% 0.0% 16.8% 12.5% 1.8% - 46.9% 1.2% - 26.3% 6.8% - 33.1% N/A - N/A 2.8% - 58.1% 6.5% - 22.8% Observations 8 7 29 7 8 59 E-23 Table E.5 Page 2 of 3 ------- Table E.5. Question Bl.2.1: How severe were the personal protective equipment shortages or supply chain disruptions that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Tyvek suite Mean score (0 to 3) 0.347 0.000 1.143 0.399 0.613 0.728 and/or -0.065 - 0.758 0.000 - 0.000 0.756 - 1.530 -0.248 - 1.047 0.052 - 1.174 0.482 - 0.974 disposable No impact (0) 76.7% 100.0% 41.8% 80.0% 62.4% 61.2% coveralls 43.5% - 93.4% N/A - N/A 26.0% - 59.4% 34.6% - 96.8% 31.5% - 85.7% 48.9% - 72.3% Slight (1) 12.0% 0.0% 18.1% 0.0% 13.9% 12.5% 2.0% - 48.0% N/A - N/A 8.0% - 36.1% N/A - N/A 4.2% - 37.0% 6.4% - 23.2% Moderate (2) 11.3% 0.0% 24.1% 20.0% 23.7% 18.4% 1.8% - 46.9% N/A - N/A 12.1% - 42.3% 3.2% - 65.4% 6.2% - 59.4% 10.6% - 30.0% Severe(3) 0.0% 0.0% 16.0% 0.0% 0.0% 7.8% N/A - N/A N/A - N/A 6.8% - 33.1% N/A - N/A N/A - N/A 3.3% - 17.6% Observations 8 7 29 7 8 59 Sanitizing Mean score (0 to 3) 0.586 0.582 1.324 0.399 1.098 0.990 wipes, 0.085 - 1.087 -0.207 - 1.371 0.903 - 1.744 0.045 - 0.753 0.273 - 1.923 0.721 - 1.260 sprays for No impact (0) 64.7% 78.5% 35.9% 60.1% 46.5% 49.8% cleaning 34.9% - 86.2% 42.2% - 94.8% 21.0% - 54.1% 25.6% - 86.8% 18.7% - 76.7% 38.3% - 61.3% work Slight (1) 12.0% 0.0% 16.0% 39.9% 13.9% 15.2% offices, or 2.0% - 48.0% N/A - N/A 6.8% - 33.0% 13.2% - 74.4% 4.2% - 37.0% 8.4% - 26.0% gels for Moderate (2) 23.3% 6.3% 27.9% 0.0% 22.8% 21.1% hand 6.6% - 56.5% 1.2% - 26.3% 14.7% - 46.5% N/A - N/A 5.8% - 58.5% 12.8% - 32.8% sanitizing Severe(3) 0.0% 15.2% 20.2% 0.0% 16.8% 13.9% N/A - N/A 2.4% - 57.0% 9.1% - 38.9% N/A - N/A 2.8% - 58.1% 7.2% - 25.0% Observations 8 7 29 7 8 59 N/A: confidence interval could not be calculated. E-24 Table E.5 Page 3 of 3 ------- Table E.6. Question Bl.2.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All N95 masks Unavailable from 0.0% 70.7% 65.1% 50.0% 87.0% 59.2% and/or supplier(s) N/A - N/A 15.9% - 96.9% 43.1% - 82.1% 5.7% - 94.3% 46.2% - 98.1% 41.7% - 74.6% elastomeric Delayed / backordered 100.0% 0.0% 49.9% 50.0% 44.3% 52.4% respirators from supplier(s) N/A - N/A N/A - N/A 27.0% - 72.9% 5.7% - 94.3% 11.2% - 83.4% 34.4% - 69.8% Transportation / 0.0% 0.0% 13.2% 0.0% 31.3% 12.2% distribution difficulties N/A - N/A N/A - N/A 3.5% - 39.4% N/A - N/A 5.3% - 78.8% 4.1% - 30.9% Price 0.0% 0.0% 13.6% 0.0% 31.3% 12.4% N/A - N/A N/A - N/A 4.0% - 37.1% N/A - N/A 5.3% - 78.8% 4.8% - 28.7% Other 0.0% 0.0% 6.4% 0.0% 0.0% 3.9% N/A - N/A N/A - N/A 1.0% - 32.8% N/A - N/A N/A - N/A 0.6% - 22.3% Observations 3 2 17 2 5 29 Alternative Unavailable from 0.0% 0.0% 8.4% 31.3% 11.1% mask supplier(s) N/A - N/A N/A - N/A 1.2% - 40.0% 5.3% - 79.0% 3.1% - 32.4% options Delayed / backordered 100.0% 0.0% 83.7% 100.0% 83.7% (surgical, from supplier(s) N/A - N/A N/A - N/A 53.2% - 95.9% N/A - N/A 60.4% - 94.5% cloth, etc.) Transportation / 0.0% 0.0% 16.3% 31.3% 16.3% distribution difficulties N/A - N/A N/A - N/A 4.1% - 46.8% 5.3% - 79.0% 5.5% - 39.6% Price 0.0% 0.0% 0.0% 31.3% 5.5% N/A - N/A N/A - N/A N/A - N/A 5.3% - 79.0% 0.8% - 30.3% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 13 5 21 E-25 Table E.6 Page 1 of 3 ------- Table E.6. Question Bl.2.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Face shield Unavailable from 33.9% 0.0% 36.4% 50.0% 0.0% 31.8% and/or supplier(s) 4.5% - 84.7% N/A - N/A 15.4% - 64.2% 5.2% - 94.8% N/A - N/A 15.8% - 53.8% protective Delayed / backordered 66.1% 0.0% 56.7% 50.0% 100.0% 59.3% eye wear from supplier(s) 15.3% - 95.5% N/A - N/A 31.2% - 79.1% 5.2% - 94.8% N/A - N/A 38.6% - 77.1% Transportation / 0.0% 0.0% 6.9% 0.0% 0.0% 4.4% distribution difficulties N/A - N/A N/A - N/A 1.0% - 35.2% N/A - N/A N/A - N/A 0.6% - 24.8% Price 0.0% 0.0% 7.3% 0.0% 44.6% 9.2% N/A - N/A N/A - N/A 1.1% - 35.8% N/A - N/A 9.5% - 86.1% 2.5% - 28.2% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 3 1 16 2 4 26 Nitrile Unavailable from 48.7% 0.0% 27.1% 0.0% 29.7% 25.4% and/or latex supplier(s) 6.2% - 93.1% N/A - N/A 10.4% - 54.3% N/A - N/A 4.9% - 77.8% 11.8% - 46.4% gloves Delayed / backordered 51.3% 29.3% 63.7% 100.0% 70.3% 64.4% from supplier(s) 6.9% - 93.8% 3.1% - 84.2% 38.3% - 83.3% N/A - N/A 22.2% - 95.1% 44.4% - 80.4% Transportation / 0.0% 0.0% 13.7% 0.0% 0.0% 8.7% distribution difficulties N/A - N/A N/A - N/A 3.3% - 42.4% N/A - N/A N/A - N/A 2.1% - 29.4% Price 0.0% 0.0% 0.0% 0.0% 31.3% 4.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 5.3% - 79.0% 0.6% - 24.3% Other 0.0% 0.0% 2.8% 0.0% 0.0% 1.8% N/A - N/A N/A - N/A 0.5% - 14.4% N/A - N/A N/A - N/A 0.3% - 9.5% Observations 2 2 17 2 5 28 E-26 Table E.6 Page 2 of 3 ------- Table E.6. Question Bl.2.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Tyvek suite Unavailable from 0.0% 28.1% 0.0% 44.6% 25.8% and/or supplier(s) N/A - N/A 10.4% - 56.8% N/A - N/A 9.4% - 86.2% 11.1% - 49.3% disposable Delayed / backordered 100.0% 50.3% 100.0% 100.0% 63.4% coveralls from supplier(s) N/A - N/A 26.6% - 73.8% N/A - N/A N/A - N/A 42.0% - 80.5% Transportation / 0.0% 6.6% 0.0% 0.0% 4.9% distribution difficulties N/A - N/A 0.9% - 34.4% N/A - N/A N/A - N/A 0.7% - 27.5% Price 0.0% 14.5% 0.0% 44.6% 15.8% N/A - N/A 3.4% - 44.9% N/A - N/A 9.4% - 86.2% 5.2% - 39.2% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 16 1 4 23 Sanitizing Unavailable from 33.9% 70.7% 26.0% 0.0% 74.1% 33.6% wipes, supplier(s) 4.4% - 85.0% 15.9% - 96.9% 10.0% - 52.8% N/A - N/A 35.4% - 93.7% 18.4% - 53.0% sprays for Delayed / backordered 66.1% 29.3% 74.8% 100.0% 57.3% 70.9% cleaning from supplier(s) 15.0% - 95.6% 3.1% - 84.1% 48.4% - 90.4% N/A - N/A 17.5% - 89.5% 51.2% - 85.0% work Transportation / 0.0% 0.0% 6.0% 0.0% 0.0% 3.8% offices, or distribution difficulties N/A - N/A N/A - N/A 0.9% - 31.0% N/A - N/A N/A - N/A 0.6% - 21.4% gels for Price 0.0% 70.7% 6.3% 0.0% 31.3% 11.9% hand N/A - N/A 15.9% - 96.9% 1.0% - 32.0% N/A - N/A 5.3% - 78.8% 4.6% - 27.5% sanitizing Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 3 2 18 2 5 30 N/A: confidence interval could not be ca culated. E-27 Table E.6 Page 3 of 3 ------- Table E.7. Question Bl.2.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All N95 masks Found alternative supplier 0.0% 29.3% 51.3% 0.0% 13.0% 34.7% and/or N/A - N/A 3.1% - 84.1% 28.2% - 73.9% N/A - N/A 1.9% - 53.8% 20.0% - 53.0% elastomeric Drew down existing inventory 33.9% 0.0% 28.1% 0.0% 31.3% 25.4% respirators 4.4% - 85.0% N/A - N/A 13.1% - 50.4% N/A - N/A 5.3% - 78.8% 13.0% - 43.6% Switched chemicals, procedures, or 0.0% 0.0% 6.8% 0.0% 31.3% 8.3% technologies N/A - N/A N/A - N/A 1.0% - 33.9% N/A - N/A 5.3% - 78.8% 2.3% - 25.5% Sought help from other utilities 33.9% 70.7% 20.9% 0.0% 0.0% 21.0% or mutual aid network (e.g., WARN) 4.4% - 85.0% 15.9% - 96.9% 7.0% - 48.2% N/A - N/A N/A - N/A 10.0% - 39.0% Coordinated with local or state 32.2% 0.0% 39.7% 100.0% 0.0% 36.0% emergency management agency 4.8% - 81.6% N/A - N/A 22.1% - 60.4% N/A - N/A N/A - N/A 22.0% - 52.7% Other 0.0% 0.0% 0.0% 0.0% 55.7% 7.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 16.6% - 88.8% 2.3% - 21.2% Observations 3 2 17 2 5 29 Alternative Found alternative supplier 51.3% 0.0% 46.2% 87.0% 51.4% mask 6.7% - 93.9% N/A - N/A 20.8% - 73.8% 42.8% - 98.4% 29.5% - 72.8% options Drew down existing inventory 0.0% 0.0% 36.8% 31.3% 29.8% (surgical, N/A - N/A N/A - N/A 14.6% - 66.4% 5.3% - 79.0% 12.9% - 54.9% cloth, etc.) Switched chemicals, procedures, or 0.0% 0.0% 9.1% 31.3% 11.5% technologies N/A - N/A N/A - N/A 1.2% - 45.8% 5.3% - 79.0% 2.7% - 37.5% Sought help from other utilities 0.0% 0.0% 17.0% 0.0% 11.2% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A 3.9% - 51.0% N/A - N/A 2.7% - 36.8% Coordinated with local or state 48.7% 0.0% 44.0% 13.0% 36.6% emergency management agency 6.1% - 93.3% N/A - N/A 24.3% - 65.9% 1.6% - 57.2% 20.3% - 56.7% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 13 5 21 E-28 Table E.7 Page 1 of 3 ------- Table E.7. Question Bl.2.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Face shield Found alternative supplier 33.9% 0.0% 47.7% 50.0% 81.5% 47.3% and/or 4.5% - 84.7% N/A - N/A 24.2% - 72.2% 5.2% - 94.8% 32.6% - 97.6% 28.5% - 66.9% protective Drew down existing inventory 32.2% 0.0% 16.0% 0.0% 63.1% 20.9% eye wear 4.7% - 82.0% N/A - N/A 6.1% - 35.9% N/A - N/A 20.4% - 91.9% 9.9% - 38.8% Switched chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 44.6% 4.6% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A 9.5% - 86.1% 0.7% - 25.3% Sought help from other utilities 0.0% 0.0% 15.2% 0.0% 0.0% 9.6% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A 3.6% - 46.3% N/A - N/A N/A - N/A 2.3% - 31.9% Coordinated with local or state 0.0% 0.0% 36.4% 50.0% 0.0% 27.2% emergency management agency N/A - N/A N/A - N/A 15.4% - 64.2% 5.2% - 94.8% N/A - N/A 12.6% - 49.2% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 3 1 16 2 4 26 Nitrile Found alternative supplier 51.3% 70.7% 48.4% 50.0% 70.3% 53.1% and/or latex 6.9% - 93.8% 15.8% - 96.9% 25.9% - 71.6% 5.5% - 94.5% 22.2% - 95.1% 36.0% - 69.6% gloves Drew down existing inventory 0.0% 29.3% 38.5% 0.0% 61.1% 34.7% N/A - N/A 3.1% - 84.2% 19.1% - 62.3% N/A - N/A 24.5% - 88.4% 19.2% - 54.2% Switched chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 31.3% 4.3% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A 5.3% - 79.0% 0.6% - 24.3% Sought help from other utilities 0.0% 0.0% 7.3% 0.0% 0.0% 4.6% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A 1.0% - 38.7% N/A - N/A N/A - N/A 0.6% - 26.6% Coordinated with local or state 48.7% 0.0% 26.2% 100.0% 0.0% 28.9% emergency management agency 6.2% - 93.1% N/A - N/A 11.3% - 49.8% N/A - N/A N/A - N/A 16.2% - 46.2% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 2 17 2 5 28 E-29 Table E.7 Page 2 of 3 ------- Table E.7. Question Bl.2.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Tyvek suite Found alternative supplier 51.3% 38.5% 100.0% 100.0% 49.8% and/or 6.7% - 93.9% 17.1% - 65.5% N/A - N/A N/A - N/A 28.9% - 70.8% disposable Drew down existing inventory 48.7% 19.0% 0.0% 44.6% 24.0% coveralls 6.1% - 93.3% 7.6% - 39.9% N/A - N/A 9.4% - 86.2% 11.3% - 43.8% Switched chemicals, procedures, or 0.0% 0.0% 0.0% 44.6% 5.1% technologies N/A - N/A N/A - N/A N/A - N/A 9.4% - 86.2% 0.7% - 28.3% Sought help from other utilities 0.0% 7.0% 0.0% 0.0% 5.1% or mutual aid network (e.g., WARN) N/A - N/A 1.0% - 35.6% N/A - N/A N/A - N/A 0.7% - 28.3% Coordinated with local or state 0.0% 34.7% 0.0% 0.0% 25.5% emergency management agency N/A - N/A 14.6% - 62.2% N/A - N/A N/A - N/A 10.6% - 49.8% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 16 1 4 23 Sanitizing Found alternative supplier 67.8% 29.3% 42.1% 50.0% 70.3% 48.6% wipes, 18.4% - 95.2% 3.1% - 84.1% 22.8% - 64.3% 5.7% - 94.3% 22.4% - 95.1% 33.1% - 64.3% sprays for Drew down existing inventory 32.2% 0.0% 25.9% 0.0% 31.3% 23.9% cleaning 4.8% - 81.6% N/A - N/A 13.1% - 44.6% N/A - N/A 5.3% - 78.8% 12.7% - 40.4% work Switched chemicals, procedures, or 0.0% 0.0% 12.8% 0.0% 31.3% 12.0% offices, or technologies N/A - N/A N/A - N/A 3.1% - 40.4% N/A - N/A 5.3% - 78.8% 3.8% - 32.0% gels for Sought help from other utilities 0.0% 70.7% 6.8% 0.0% 0.0% 8.2% hand or mutual aid network (e.g., WARN) N/A - N/A 15.9% - 96.9% 0.9% - 36.9% N/A - N/A N/A - N/A 2.0% - 27.9% sanitizing Coordinated with local or state 0.0% 0.0% 28.1% 100.0% 0.0% 25.1% emergency management agency N/A - N/A N/A - N/A 11.7% - 53.6% N/A - N/A N/A - N/A 12.1% - 45.0% Other 0.0% 0.0% 0.0% 0.0% 29.7% 3.8% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 4.9% - 77.6% 0.6% - 21.4% Observations 3 2 18 2 5 30 N/A: confidence interval could not be calculated. E-30 Table E.7 Page 3 of 3 ------- Table E.8. Question Bl.3.1: How severe were the shortages or supply chain disruptions involving durable goods and other critical equipment that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Filter media Mean score (0 to 3) 0.000 0.152 0.301 0.000 0.000 0.164 0.000 - 0.000 -0.106 - 0.410 0.036 - 0.565 0.000 - 0.000 0.000 - 0.000 0.030 - 0.298 No impact (0) 100.0% 84.8% 86.2% 100.0% 100.0% 91.4% N/A - N/A 43.0% - 97.6% 70.8% - 94.1% N/A - N/A N/A - N/A 82.7% - 95.9% Slight (1) 0.0% 15.2% 1.7% 0.0% 0.0% 2.8% N/A - N/A 2.4% - 57.0% 0.4% - 7.6% N/A - N/A N/A - N/A 0.7% - 10.2% Moderate (2) 0.0% 0.0% 8.1% 0.0% 0.0% 3.9% N/A - N/A N/A - N/A 2.4% - 24.2% N/A - N/A N/A - N/A 1.1% - 12.6% Severe (3) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.1% N/A - N/A N/A - N/A 0.3% - 11.1% Observations 8 7 29 7 9 60 Granular/ Mean score (0 to 3) 0.000 0.152 0.138 0.000 0.000 0.086 Powdered 0.000 - 0.000 -0.106 - 0.410 -0.017 - 0.293 0.000 - 0.000 0.000 - 0.000 0.005 - 0.167 Activated No impact (0) 100.0% 84.8% 90.2% 100.0% 100.0% 93.3% Carbon (GAC/ N/A - N/A 43.0% - 97.6% 75.1% - 96.6% N/A - N/A N/A - N/A 84.8% - 97.2% PAC) Slight (1) 0.0% 15.2% 5.7% 0.0% 0.0% 4.7% N/A - N/A 2.4% - 57.0% 1.5% - 19.9% N/A - N/A N/A - N/A 1.6% - 12.9% Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.1% N/A - N/A N/A - N/A 0.3% - 11.1% Severe (3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 9 60 E-31 Table E.8 Page 1 of 5 ------- Table E.8. Question Bl.3.1: How severe were the shortages or supply chain disruptions involving durable goods and other critical equipment that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Membrane Mean score (0 to 3) 0.129 0.152 0.234 0.000 0.000 0.153 modules -0.093 - 0.352 -0.106 - 0.410 0.027 - 0.441 0.000 - 0.000 0.000 - 0.000 0.040 - 0.266 No impact (0) 87.1% 84.8% 86.4% 100.0% 100.0% 89.4% 48.4% - 98.0% 43.0% - 97.6% 69.7% - 94.6% N/A - N/A N/A - N/A 79.0% - 95.0% Slight (1) 12.9% 15.2% 3.8% 0.0% 0.0% 5.9% 2.0% - 51.6% 2.4% - 57.0% 0.6% - 20.9% N/A - N/A N/A - N/A 2.0% - 16.0% Moderate (2) 0.0% 0.0% 9.8% 0.0% 0.0% 4.7% N/A - N/A N/A - N/A 3.4% - 24.9% N/A - N/A N/A - N/A 1.6% - 12.9% Severe (3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 9 60 Pumps Mean score (0 to 3) 0.129 0.304 0.492 0.000 0.494 0.363 -0.093 - 0.352 -0.211 - 0.820 0.192 - 0.792 0.000 - 0.000 -0.213 - 1.201 0.176 - 0.550 No impact (0) 87.1% 84.8% 76.3% 100.0% 79.6% 81.8% 48.4% - 98.0% 43.0% - 97.6% 58.7% - 87.9% N/A - N/A 46.0% - 94.7% 70.7% - 89.3% Slight (1) 12.9% 0.0% 0.0% 0.0% 6.0% 2.9% 2.0% - 51.6% N/A - N/A N/A - N/A N/A - N/A 1.2% - 25.4% 0.7% - 10.9% Moderate (2) 0.0% 15.2% 22.1% 0.0% 0.0% 12.6% N/A - N/A 2.4% - 57.0% 10.8% - 39.9% N/A - N/A N/A - N/A 6.5% - 23.1% Severe (3) 0.0% 0.0% 1.7% 0.0% 14.5% 2.8% N/A - N/A N/A - N/A 0.4% - 7.6% N/A - N/A 2.4% - 53.3% 0.7% - 10.2% Observations 8 7 29 7 9 60 E-32 Table E.8 Page 2 of 5 ------- Table E.8. Question Bl.3.1: How severe were the shortages or supply chain disruptions involving durable goods and other critical equipment that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Motors Mean score (0 to 3) 0.000 0.304 0.411 0.000 0.494 0.303 0.000 - 0.000 -0.211 - 0.820 0.126 - 0.696 0.000 - 0.000 -0.213 - 1.201 0.123 - 0.483 No impact (0) 100.0% 84.8% 80.3% 100.0% 79.6% 85.8% N/A - N/A 43.0% - 97.6% 62.7% - 90.8% N/A - N/A 46.0% - 94.7% 75.5% - 92.2% Slight (1) 0.0% 0.0% 0.0% 0.0% 6.0% 0.8% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 1.2% - 25.4% 0.2% - 3.7% Moderate (2) 0.0% 15.2% 18.0% 0.0% 0.0% 10.6% N/A - N/A 2.4% - 57.0% 7.9% - 35.9% N/A - N/A N/A - N/A 5.0% - 21.0% Severe (3) 0.0% 0.0% 1.7% 0.0% 14.5% 2.8% N/A - N/A N/A - N/A 0.4% - 7.6% N/A - N/A 2.4% - 53.3% 0.7% - 10.2% Observations 8 7 29 7 9 60 Pipes Mean score (0 to 3) 0.000 0.152 0.376 0.000 0.349 0.247 0.000 - 0.000 -0.106 - 0.410 0.136 - 0.616 0.000 - 0.000 -0.125 - 0.823 0.112 - 0.382 No impact (0) 100.0% 84.8% 76.3% 100.0% 79.6% 83.9% N/A - N/A 43.0% - 97.6% 58.7% - 87.9% N/A - N/A 46.0% - 94.7% 73.5% - 90.7% Slight (1) 0.0% 15.2% 9.9% 0.0% 6.0% 7.5% N/A - N/A 2.4% - 57.0% 3.2% - 26.5% N/A - N/A 1.2% - 25.4% 3.1% - 16.9% Moderate (2) 0.0% 0.0% 13.8% 0.0% 14.5% 8.6% N/A - N/A N/A - N/A 5.9% - 29.2% N/A - N/A 2.4% - 53.3% 4.1% - 17.3% Severe (3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 9 60 E-33 Table E.8 Page 3 of 5 ------- Table E.8. Question Bl.3.1: How severe were the shortages or supply chain disruptions involving durable goods and other critical equipment that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Valves Mean score (0 to 3) 0.000 0.000 - 0.000 0.152 -0.106 - 0.410 0.393 0.147 - 0.639 0.000 0.000 - 0.000 0.349 -0.125 - 0.823 0.255 0.118 - 0.393 No impact (0) 100.0% N/A - N/A 84.8% 43.0% - 97.6% 76.3% 58.7% - 87.9% 100.0% N/A - N/A 79.6% 46.0% - 94.7% 83.9% 73.5% - 90.7% Slight (1) 0.0% N/A - N/A 15.2% 2.4% - 57.0% 9.9% 3.2% - 26.5% 0.0% N/A - N/A 6.0% 1.2% - 25.4% 7.5% 3.1% - 16.9% Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 12.2% 4.7% - 27.9% 0.0% N/A - N/A 14.5% 2.4% - 53.3% 7.8% 3.5% - 16.6% Severe (3) 0.0% N/A - N/A 0.0% N/A - N/A 1.7% 0.4% - 7.6% 0.0% N/A - N/A 0.0% N/A - N/A 0.8% 0.2% - 3.7% Observations 8 7 29 7 9 60 Fuel Mean score (0 to 3) 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.179 -0.014 - 0.372 0.000 0.000 - 0.000 0.000 0.000 - 0.000 0.086 -0.010 - 0.182 No impact (0) 100.0% N/A - N/A 100.0% N/A - N/A 90.2% 75.1% - 96.6% 100.0% N/A - N/A 100.0% N/A - N/A 95.3% 87.1% - 98.4% Slight (1) 0.0% N/A - N/A 0.0% N/A - N/A 1.7% 0.4% - 7.6% 0.0% N/A - N/A 0.0% N/A - N/A 0.8% 0.2% - 3.7% Moderate (2) 0.0% N/A - N/A 0.0% N/A - N/A 8.1% 2.4% - 24.2% 0.0% N/A - N/A 0.0% N/A - N/A 3.9% 1.1% - 12.6% Severe (3) Observations 8 7 29 7 9 60 E-34 Table E.8 Page 4 of 5 ------- Table E.8. Question Bl.3.1: How severe were the shortages or supply chain disruptions involving durable goods and other critical equipment that you experienced? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Vehicles Mean score (0 to 3) 0.000 0.000 0.196 0.000 0.000 0.094 0.000 - 0.000 0.000 - 0.000 -0.002 - 0.393 0.000 - 0.000 0.000 - 0.000 -0.004 - 0.193 No impact (0) 100.0% 100.0% 90.2% 100.0% 100.0% 95.3% N/A - N/A N/A - N/A 75.1% - 96.6% N/A - N/A N/A - N/A 87.1% - 98.4% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 0.0% 0.0% 9.8% 0.0% 0.0% 4.7% N/A - N/A N/A - N/A 3.4% - 24.9% N/A - N/A N/A - N/A 1.6% - 12.9% Severe (3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 29 7 9 60 N/A: confidence interval could not be calculated. E-35 Table E.8 Page 5 of 5 ------- Table E.9. Question Bl.3.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Filter media Unavailable from supplier(s) 100.0% N/A - N/A 29.3% 2.7% - 86.0% 45.3% 8.9% - 87.5% Delayed / backordered from supplier(s) 0.0% N/A - N/A 41.4% 6.6% - 87.7% 32.0% 5.4% - 79.4% Transportation / distribution difficulties 0.0% N/A - N/A 29.3% 2.7% - 86.0% 22.7% 2.1% - 80.0% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 58.6% 12.3% - 93.4% 45.3% 8.9% - 87.5% Observations 1 4 5 Granular/ Powdered Activated Carbon (GAC/ PAC) Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 17.1% 6.8% - 37.1% 41.4% 5.3% - 89.9% Transportation / distribution difficulties 0.0% N/A - N/A 41.4% 3.1% - 94.1% 29.3% 2.1% - 88.9% Price 0.0% N/A - N/A 41.4% 3.1% - 94.1% 29.3% 2.1% - 88.9% Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 4 E-36 Table E.9 Page 1 of 5 ------- Table E.9. Question Bl.3.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Membrane Unavailable from 0.0% 0.0% 12.3% 7.6% modules supplier(s) N/A - N/A N/A - N/A 6.4% - 22.4% 7.6% - 7.6% Delayed / backordered 100.0% 100.0% 58.0% 74.0% from supplier(s) N/A - N/A N/A - N/A 12.6% - 92.9% 27.3% - 95.6% Transportation / 0.0% 0.0% 42.0% 26.0% distribution difficulties N/A - N/A N/A - N/A 7.1% - 87.4% 4.4% - 72.7% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 4 6 Pumps Unavailable from 0.0% 0.0% 41.7% 70.7% 36.8% supplier(s) N/A - N/A N/A - N/A 17.7% - 70.5% 14.1% - 97.3% 13.0% - 69.4% Delayed / backordered 0.0% 100.0% 35.5% 100.0% 48.1% from supplier(s) N/A - N/A N/A - N/A 9.4% - 74.5% N/A - N/A 18.7% - 78.9% Transportation / 100.0% 0.0% 58.8% 70.7% 59.1% distribution difficulties N/A - N/A N/A - N/A 23.8% - 86.7% 14.1% - 97.3% 32.6% - 81.2% Price 0.0% 0.0% 7.1% 0.0% 4.4% N/A - N/A N/A - N/A 1.0% - 37.1% N/A - N/A 0.6% - 25.1% Other 0.0% 0.0% 17.1% 0.0% 10.7% N/A - N/A N/A - N/A 2.2% - 65.2% N/A - N/A 1.4% - 50.6% Observations 1 1 7 2 11 E-37 Table E.9 Page 2 of 5 ------- Table E.9. Question Bl.3.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Motors Unavailable from supplier(s) 0.0% N/A - N/A 50.3% 25.6% - 74.9% 70.7% 13.9% - 97.3% 47.4% 22.2% - 74.0% Delayed / backordered from supplier(s) 100.0% N/A - N/A 30.8% 14.7% - 53.4% 100.0% N/A - N/A 53.8% 23.9% - 81.2% Transportation / distribution difficulties 0.0% N/A - N/A 70.9% 29.0% - 93.6% 70.7% 13.9% - 97.3% 61.1% 28.6% - 86.1% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 20.6% 2.9% - 69.3% 0.0% N/A - N/A 13.8% 1.7% - 60.0% Observations 1 6 2 9 Pipes Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 70.7% 14.0% - 97.3% 12.1% 1.5% - 54.9% Delayed / backordered from supplier(s) 100.0% N/A - N/A 51.7% 23.2% - 79.1% 100.0% N/A - N/A 65.8% 33.7% - 87.9% Transportation / distribution difficulties 0.0% N/A - N/A 42.6% 16.5% - 73.5% 70.7% 14.0% - 97.3% 42.3% 17.7% - 71.4% Price 0.0% N/A - N/A 7.1% 1.0% - 36.3% 0.0% N/A - N/A 5.0% 0.7% - 27.8% Other 0.0% N/A - N/A 17.1% 2.3% - 64.3% 0.0% N/A - N/A 12.1% 1.5% - 54.9% Observations 1 7 2 10 E-38 Table E.9 Page 3 of 5 ------- Table E.9. Question Bl.3.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Valves Unavailable from supplier(s) 0.0% N/A - N/A 7.1% 1.0% - 36.3% 70.7% 14.1% - 97.3% 17.1% 3.4% - 54.7% Delayed / backordered from supplier(s) 100.0% N/A - N/A 51.7% 23.3% - 79.1% 100.0% N/A - N/A 65.8% 33.7% - 87.9% Transportation / distribution difficulties 0.0% N/A - N/A 42.6% 16.5% - 73.5% 70.7% 14.1% - 97.3% 42.3% 17.7% - 71.4% Price 0.0% N/A - N/A 7.1% 1.0% - 36.3% 0.0% N/A - N/A 5.0% 0.7% - 27.8% Other 0.0% N/A - N/A 17.1% 2.3% - 64.2% 0.0% N/A - N/A 12.1% 1.5% - 54.9% Observations 1 7 2 10 Fuel Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 58.6% 4.0% - 98.0% 58.6% 4.0% - 98.0% Price 0.0% N/A - N/A 0.0% N/A - N/A Other 41.4% 2.0% - 96.0% 41.4% 2.0% - 96.0% Observations 3 3 E-39 Table E.9 Page 4 of 5 ------- Table E.9. Question Bl.3.2: What contributed to each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Vehicles Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Transportation / distribution difficulties 58.6% 4.5% - 97.7% 58.6% 4.5% - 97.7% Price 0.0% N/A - N/A 0.0% N/A - N/A Other 41.4% 2.3% - 95.5% 41.4% 2.3% - 95.5% Observations 3 3 N/A: confidence interval could not be calculated. E-40 Table E.9 Page 5 of 5 ------- Table E.10. Question Bl.3.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Filter media Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 100.0% N/A - N/A 12.1% 6.6% - 21.3% 32.0% 5.4% - 79.4% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 0.0% N/A - N/A 29.3% 2.7% - 86.0% 22.7% 2.1% - 80.0% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 58.6% 12.3% - 93.4% 45.3% 8.9% - 87.5% Observations 1 4 5 Granular/ Powdered Activated Carbon (GAC/ PAC) Found alternative supplier 0.0% N/A - N/A 41.4% 3.1% - 94.1% 29.3% 2.1% - 88.9% Drew down existing inventory 100.0% N/A - N/A 17.1% 6.8% - 37.1% 41.4% 5.3% - 89.9% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 0.0% N/A - N/A 41.4% 3.1% - 94.1% 29.3% 2.1% - 88.9% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 4 E-41 Table E.10 Page 1 of 5 ------- Table E.10. Question Bl.3.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Membrane Found alternative supplier 100.0% 0.0% 58.0% 55.7% modules N/A - N/A N/A - N/A 12.6% - 92.9% 20.5% - 85.9% Drew down existing inventory 0.0% N/A - N/A 100.0% N/A - N/A 28.2% 14.0% - 48.6% 35.8% 9.3% - 75.3% Switched chemicals, 0.0% 0.0% 0.0% 0.0% procedures, or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Sought help from other utilities 0.0% 0.0% 29.7% 18.4% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A 2.8% - 86.1% 1.6% - 75.2% Coordinated with local or state 0.0% 0.0% 0.0% 0.0% emergency management agency N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 12.3% 6.4% - 22.4% 7.6% 7.6% - 7.6% Observations 1 1 4 6 Pumps Found alternative supplier 0.0% 0.0% 51.7% 0.0% 32.4% N/A - N/A N/A - N/A 20.2% - 81.9% N/A - N/A 10.6% - 65.9% Drew down existing inventory 100.0% 100.0% 25.5% 29.3% 42.7% N/A - N/A N/A - N/A 6.2% - 63.9% 2.7% - 85.9% 23.1% - 64.8% Switched chemicals, 0.0% 0.0% 0.0% 0.0% 0.0% procedures, or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Sought help from other utilities 0.0% 0.0% 17.1% 0.0% 10.7% or mutual aid network (e.g., WARN) N/A - N/A N/A - N/A 2.2% - 65.2% N/A - N/A 1.4% - 50.6% Coordinated with local or state 0.0% 0.0% 0.0% 0.0% 0.0% emergency management agency N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 24.1% 70.7% 25.8% N/A - N/A N/A - N/A 4.8% - 66.6% 14.1% - 97.3% 8.0% - 58.1% Observations 1 1 7 2 11 E-42 Table E.10 Page 2 of 5 ------- Table E.10. Question Bl.3.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Motors Found alternative supplier 0.0% N/A - N/A 50.3% 25.6% - 74.9% 0.0% N/A - N/A 33.6% 23.8% - 45.1% Drew down existing inventory 100.0% N/A - N/A 22.3% 13.3% - 34.9% 29.3% 2.7% - 86.1% 34.3% 12.8% - 65.1% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 0.0% N/A - N/A 20.6% 2.9% - 69.3% 0.0% N/A - N/A 13.8% 1.7% - 60.0% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 29.1% 6.4% - 71.0% 70.7% 13.9% - 97.3% 33.2% 10.3% - 68.3% Observations 1 6 2 9 Pipes Found alternative supplier 0.0% N/A - N/A 35.5% 12.8% - 67.4% 70.7% 14.0% - 97.3% 37.3% 15.0% - 66.7% Drew down existing inventory 100.0% N/A - N/A 41.7% 23.6% - 62.3% 100.0% N/A - N/A 58.7% 29.3% - 83.0% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 0.0% N/A - N/A 17.1% 2.3% - 64.3% 0.0% N/A - N/A 12.1% 1.5% - 54.9% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 24.1% 5.1% - 65.2% 70.7% 14.0% - 97.3% 29.2% 8.8% - 63.7% Observations 1 7 2 10 E-43 Table E.10 Page 3 of 5 ------- Table E.10. Question Bl.3.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Valves Found alternative supplier 0.0% N/A - N/A 42.6% 16.5% - 73.5% 70.7% 14.1% - 97.3% 42.3% 17.7% - 71.4% Drew down existing inventory 100.0% N/A - N/A 16.2% 10.5% - 24.2% 100.0% N/A - N/A 40.6% 16.5% - 70.3% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 0.0% N/A - N/A 17.1% 2.3% - 64.2% 0.0% N/A - N/A 12.1% 1.5% - 54.9% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 24.1% 5.1% - 65.2% 70.7% 14.1% - 97.3% 29.2% 8.8% - 63.7% Observations 1 7 2 10 Fuel Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 17.1% 17.1% - 17.1% 17.1% 17.1% - 17.1% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 41.4% 2.0% - 96.0% 41.4% 2.0% - 96.0% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 41.4% 2.0% - 96.0% 41.4% 2.0% - 96.0% Observations 3 3 E-44 Table E.10 Page 4 of 5 ------- Table E.10. Question Bl.3.3: How did you address each shortage or supply chain disruption? (select all that apply) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Vehicles Found alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Drew down existing inventory 17.1% 17.1% - 17.1% 17.1% 17.1% - 17.1% Switched chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Sought help from other utilities or mutual aid network (e.g., WARN) 41.4% 2.3% - 95.5% 41.4% 2.3% - 95.5% Coordinated with local or state emergency management agency 0.0% N/A - N/A 0.0% N/A - N/A Other 41.4% 2.3% - 95.5% 41.4% 2.3% - 95.5% Observations 3 3 N/A: confidence interval could not be calculated. E-45 Table E.10 Page 5 of 5 ------- Table E.ll Question B2.1: What kinds of shortages or supply chain disruptions are you most concerned about from present day through December 2020? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Treatment Chemicals 25.9% 7.3% - 60.8% 15.2% 2.4% - 57.0% 24.8% 12.6% - 43.1% 43.7% 14.2% - 78.4% 18.1% 3.0% - 61.1% 24.6% 15.3% - 37.0% PPE 23.3% 6.6% - 56.5% 6.3% 1.2% - 27.6% 43.6% 27.0% - 61.8% 43.7% 14.2% - 78.4% 53.5% 23.3% - 81.3% 36.4% 25.6% - 48.9% Durable Goods and Other Equipment and Supplies 12.9% 2.0% - 51.6% 45.6% 17.5% - 76.8% 22.1% 10.8% - 39.9% 53.3% 20.2% - 83.7% 57.7% 26.0% - 84.1% 30.7% 20.4% - 43.4% None 37.9% 13.6% - 70.3% 48.1% 18.9% - 78.7% 44.6% 27.9% - 62.5% 46.7% 16.3% - 79.8% 28.4% 7.9% - 64.7% 42.1% 30.4% - 54.8% Observations 8 7 28 6 8 57 E-46 Table E.11 Page 1 of 1 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Carbon Mean score (0 to 3) 0.259 0.000 0.082 0.000 0.000 0.084 dioxide -0.185 - 0.703 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.023 - 0.191 None (0) 87.1% 100.0% 95.9% 100.0% 100.0% 95.8% 48.4% - 98.0% N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 85.8% - 98.8% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 12.9% 0.0% 4.1% 0.0% 0.0% 4.2% 2.0% - 51.6% N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 1.2% - 14.2% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Ferric Mean score (0 to 3) 0.259 0.000 0.100 0.000 0.000 0.092 chloride -0.185 - 0.703 0.000 - 0.000 -0.049 - 0.248 0.000 - 0.000 0.000 - 0.000 -0.015 - 0.200 None (0) 87.1% 100.0% 94.2% 100.0% 100.0% 95.0% 48.4% - 98.0% N/A - N/A 79.7% - 98.5% N/A - N/A N/A - N/A 85.6% - 98.3% Slight (1) 0.0% 0.0% 1.7% 0.0% 0.0% 0.8% N/A - N/A N/A - N/A 0.3% - 8.2% N/A - N/A N/A - N/A 0.2% - 4.1% Moderate (2) 12.9% 0.0% 4.1% 0.0% 0.0% 4.2% 2.0% - 51.6% N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 1.2% - 14.2% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 E-47 Table E.12 Page 1 of 6 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Fluoride Mean score (0 to 3) 0.000 0.000 0.082 0.000 0.000 0.040 0.000 - 0.000 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.032 - 0.113 None (0) 100.0% 100.0% 95.9% 100.0% 100.0% 98.0% N/A - N/A N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 88.6% - 99.7% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Gaseous Mean score (0 to 3) 0.000 0.000 0.166 0.000 0.000 0.081 chlorine 0.000 - 0.000 0.000 - 0.000 -0.011 - 0.343 0.000 - 0.000 0.000 - 0.000 -0.008 - 0.171 None (0) 100.0% 100.0% 87.5% 100.0% 100.0% 93.9% N/A - N/A N/A - N/A 68.9% - 95.7% N/A - N/A N/A - N/A 83.4% - 97.9% Slight (1) 0.0% 0.0% 8.4% 0.0% 0.0% 4.1% N/A - N/A N/A - N/A 2.3% - 26.5% N/A - N/A N/A - N/A 1.1% - 14.1% Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 E-48 Table E.12 Page 2 of 6 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Liquid Mean score (0 to 3) 0.000 0.000 0.082 0.000 0.000 0.040 oxygen 0.000 - 0.000 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.032 - 0.113 None (0) 100.0% 100.0% 95.9% 100.0% 100.0% 98.0% N/A - N/A N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 88.6% - 99.7% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Lime Mean score (0 to 3) 0.129 0.000 0.082 0.000 0.000 0.062 -0.093 - 0.352 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.020 - 0.145 None (0) 87.1% 100.0% 95.9% 100.0% 100.0% 95.8% 48.4% - 98.0% N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 85.8% - 98.8% Slight (1) 12.9% 0.0% 0.0% 0.0% 0.0% 2.2% 2.0% - 51.6% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 0.4% - 12.3% Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 E-49 Table E.12 Page 3 of 6 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Orthophosphate Mean score (0 to 3) 0.000 0.000 0.082 0.000 0.000 0.040 0.000 - 0.000 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.032 - 0.113 None (0) 100.0% 100.0% 95.9% 100.0% 100.0% 98.0% N/A - N/A N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 88.6% - 99.7% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Polymers Mean score (0 to 3) 0.000 0.000 0.166 0.219 0.000 0.101 0.000 - 0.000 0.000 - 0.000 -0.011 - 0.343 -0.134 - 0.571 0.000 - 0.000 0.005 - 0.196 None (0) 100.0% 100.0% 87.5% 78.1% 100.0% 92.0% N/A - N/A N/A - N/A 68.9% - 95.7% 31.3% - 96.6% N/A - N/A 81.3% - 96.8% Slight (1) 0.0% 0.0% 8.4% 21.9% 0.0% 6.0% N/A - N/A N/A - N/A 2.3% - 26.5% 3.4% - 68.7% N/A - N/A 2.1% - 16.0% Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 E-50 Table E.12 Page 4 of 6 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Potassium Mean score (0 to 3) 0.000 0.000 0.082 0.000 0.000 0.040 permanganate 0.000 - 0.000 0.000 - 0.000 -0.063 - 0.228 0.000 - 0.000 0.000 - 0.000 -0.032 - 0.113 None (0) 100.0% 100.0% 95.9% 100.0% 100.0% 98.0% N/A - N/A N/A - N/A 78.6% - 99.3% N/A - N/A N/A - N/A 88.6% - 99.7% Slight (1) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Sodium Mean score (0 to 3) 0.000 0.000 0.082 0.219 0.000 0.060 hydroxide 0.000 - 0.000 0.000 - 0.000 -0.063 - 0.228 -0.134 - 0.571 0.000 - 0.000 -0.021 - 0.140 None (0) 100.0% 100.0% 95.9% 78.1% 100.0% 96.1% N/A - N/A N/A - N/A 78.6% - 99.3% 31.3% - 96.6% N/A - N/A 86.5% - 98.9% Slight (1) 0.0% 0.0% 0.0% 21.9% 0.0% 1.9% N/A - N/A N/A - N/A N/A - N/A 3.4% - 68.7% N/A - N/A 0.3% - 11.3% Moderate (2) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 E-51 Table E.12 Page 5 of 6 ------- Table E.12. Question B2.1.1: How severe are your concerns about treatment chemical shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Sodium Mean score (0 to 3) 0.259 0.152 0.312 0.437 0.000 0.255 hypochlorite -0.185 - 0.703 -0.106 - 0.410 0.025 - 0.599 0.058 - 0.817 0.000 - 0.000 0.084 - 0.427 None (0) 87.1% 84.8% 85.3% 56.3% 100.0% 84.7% 48.4% - 98.0% 43.0% - 97.6% 67.7% - 94.1% 21.6% - 85.8% N/A - N/A 72.8% - 92.0% Slight (1) 0.0% 15.2% 4.5% 43.7% 0.0% 8.0% N/A - N/A 2.4% - 57.0% 0.7% - 22.9% 14.2% - 78.4% N/A - N/A 3.2% - 18.7% Moderate (2) 12.9% 0.0% 4.1% 0.0% 0.0% 4.2% 2.0% - 51.6% N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 1.2% - 14.2% Severe(3) 0.0% 0.0% 6.2% 0.0% 0.0% 3.0% N/A - N/A N/A - N/A 1.5% - 21.6% N/A - N/A N/A - N/A 0.8% - 11.4% Observations 8 7 28 6 8 57 N/A: confidence interval could not be calculated. E-52 Table E.12 Page 6 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Carbon dioxide Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 2 Ferric chloride Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 2 3 E-53 Table E.13 Page 1 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Fluoride Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 Gaseous chlorine Unavailable from supplier(s) 31.3% 31.3% - 31.3% 31.3% 31.3% - 31.3% Delayed / backordered from supplier(s) 64.3% 64.3% - 64.3% 64.3% 64.3% - 64.3% Transportation / distribution difficulties 31.3% 31.3% - 31.3% 31.3% 31.3% - 31.3% Price 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 3 3 E-54 Table E.13 Page 2 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Liquid oxygen Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 Lime Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 2 E-55 Table E.13 Page 3 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Orthophosphate Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 Polymers Unavailable from supplier(s) 31.3% 6.0% - 76.4% 100.0% N/A - N/A 47.7% 47.7% - 47.7% Delayed / backordered from supplier(s) 100.0% N/A - N/A 0.0% N/A - N/A 76.2% 19.5% - 97.7% Transportation / distribution difficulties 31.3% 6.0% - 76.4% 0.0% N/A - N/A 23.8% 2.3% - 80.5% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 3 1 4 E-56 Table E.13 Page 4 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Potassium permanganate Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 Sodium hydroxide Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A 100.0% N/A - N/A Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 2 E-57 Table E.13 Page 5 of 6 ------- Table E.13. Question B2.1.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Sodium hypochlorite Unavailable from supplier(s) 0.0% N/A - N/A 0.0% N/A - N/A 11.6% 5.0% - 24.5% 50.0% 2.0% - 98.0% 18.0% 4.0% - 53.7% Delayed / backordered from supplier(s) 100.0% N/A - N/A 100.0% N/A - N/A 88.4% 75.5% - 95.0% 50.0% 2.0% - 98.0% 82.0% 46.3% - 96.0% Transportation / distribution difficulties 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other Observations 1 1 4 2 8 N/A: confidence interval could not be calculated. E-58 Table E.13 Page 6 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Carbon dioxide Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 100.0% N/A - N/A 0.0% N/A - N/A 52.0% 52.0% - 52.0% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 0.0% N/A - N/A 100.0% N/A - N/A 48.0% 48.0% - 48.0% Other Observations 1 1 2 Ferric chloride Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 100.0% N/A - N/A 29.3% 29.3% - 29.3% 59.9% 59.9% - 59.9% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 0.0% N/A - N/A 70.7% 70.7% - 70.7% 40.1% 40.1% - 40.1% Other Observations 1 2 3 E-59 Table E.14 Page 1 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Fluoride Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 0.0% N/A - N/A 0.0% N/A - N/A Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 100.0% N/A - N/A 100.0% N/A - N/A Other Observations 1 1 Gaseous chlorine Seek alternative supplier 31.3% 31.3% - 31.3% 31.3% 31.3% - 31.3% Increase purchasing / maintain a larger than typical inventory 31.3% 31.3% - 31.3% 31.3% 31.3% - 31.3% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 33.0% 33.0% - 33.0% 33.0% 33.0% - 33.0% Other Observations 3 3 E-60 Table E.14 Page 2 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Liquid oxygen Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 0.0% N/A - N/A 0.0% N/A - N/A Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 100.0% N/A - N/A 100.0% N/A - N/A Other Observations 1 1 Lime Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 100.0% N/A - N/A 0.0% N/A - N/A 52.0% 52.0% - 52.0% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 0.0% N/A - N/A 100.0% N/A - N/A 48.0% 48.0% - 48.0% Other Observations 1 1 2 E-61 Table E.14 Page 3 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Orthophos- phate Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 0.0% N/A - N/A 0.0% N/A - N/A Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 100.0% N/A - N/A 100.0% N/A - N/A Other Observations 1 1 Polymers Seek alternative supplier 31.3% 6.0% - 76.4% 100.0% N/A - N/A 47.7% 47.7% - 47.7% Increase purchasing / maintain a larger than typical inventory 67.0% 44.8% - 83.5% 0.0% N/A - N/A 51.0% 13.8% - 87.1% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 33.0% 16.5% - 55.2% 0.0% N/A - N/A 25.1% 25.1% - 25.1% Other Observations 3 1 4 E-62 Table E.14 Page 4 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Potassium perman- ganate Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 0.0% N/A - N/A 0.0% N/A - N/A Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 100.0% N/A - N/A 100.0% N/A - N/A Other Observations 1 1 Sodium hydroxide Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Increase purchasing / maintain a larger than typical inventory 0.0% N/A - N/A 100.0% N/A - N/A 48.7% 48.7% - 48.7% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 100.0% N/A - N/A 0.0% N/A - N/A 51.3% 51.3% - 51.3% Other Observations 1 1 2 E-63 Table E.14 Page 5 of 6 ------- Table E.14. Question B2.1.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Chain Issue Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Sodium hypochlo- rite Seek alternative supplier 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 50.0% 2.0% - 98.0% 12.6% 1.5% - 57.4% Increase purchasing / maintain a larger than typical inventory 100.0% N/A - N/A 100.0% N/A - N/A 72.0% 23.6% - 95.5% 50.0% 2.0% - 98.0% 74.2% 30.8% - 94.9% Switch chemicals, procedures, or technologies 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Make arrangements with neighboring utilities or mutual aid network 0.0% N/A - N/A 0.0% N/A - N/A 28.0% 4.5% - 76.4% 0.0% N/A - N/A 13.2% 1.6% - 59.2% Other Observations 1 1 4 2 8 N/A: confidence interval could not be calculated. E-64 Table E.14 Page 6 of 6 ------- Table E.15. Question B2.2.1: How severe are your concerns about personal protective equipment shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All N95 masks Mean score (0 to 3) 0.466 0.189 0.720 0.437 0.931 0.607 and/or -0.053 - 0.985 -0.118 - 0.496 0.365 - 1.076 0.058 - 0.817 0.289 - 1.572 0.385 - 0.830 elastomeric None (0) 76.7% 93.7% 60.5% 56.3% 46.5% 65.6% respirators 43.5% - 93.4% 72.4% - 98.8% 41.9% - 76.4% 21.6% - 85.8% 18.7% - 76.7% 53.2% - 76.1% Slight (1) 0.0% 0.0% 12.8% 43.7% 13.9% 11.8% N/A - N/A N/A - N/A 4.6% - 31.2% 14.2% - 78.4% 4.1% - 37.8% 5.9% - 22.2% Moderate (2) 23.3% 0.0% 20.9% 0.0% 39.6% 18.9% 6.6% - 56.5% N/A - N/A 9.4% - 40.0% N/A - N/A 14.2% - 72.3% 10.8% - 31.0% Severe(3) 0.0% 6.3% 5.8% 0.0% 0.0% 3.7% N/A - N/A 1.2% - 27.6% 1.5% - 20.3% N/A - N/A N/A - N/A 1.2% - 10.7% Observations 8 7 28 6 8 57 Alternative Mean score (0 to 3) 0.347 0.189 0.511 0.656 0.702 0.476 mask -0.065 - 0.758 -0.118 - 0.496 0.231 - 0.792 0.014 - 1.298 0.178 - 1.226 0.299 - 0.653 options None (0) 76.7% 93.7% 64.9% 56.3% 46.5% 67.8% (surgical, 43.5% - 93.4% 72.4% - 98.8% 46.0% - 80.1% 21.6% - 85.8% 18.7% - 76.7% 55.7% - 77.8% cloth, etc.) Slight (1) 12.0% 0.0% 19.0% 21.9% 36.7% 17.7% 2.0% - 48.0% N/A - N/A 8.6% - 36.9% 3.4% - 68.7% 13.8% - 67.7% 10.1% - 29.1% Moderate (2) 11.3% 0.0% 16.1% 21.9% 16.8% 13.7% 1.8% - 46.9% N/A - N/A 6.6% - 34.0% 3.4% - 68.7% 2.8% - 58.1% 7.3% - 24.3% Severe(3) 0.0% 6.3% 0.0% 0.0% 0.0% 0.8% N/A - N/A 1.2% - 27.6% N/A - N/A N/A - N/A N/A - N/A 0.2% - 4.1% Observations 8 7 28 6 8 57 E-65 Table E.15 Page 1 of 3 ------- Table E.15. Question B2.2.1: How severe are your concerns about personal protective equipment shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Face shield Mean score (0 to 3) 0.227 0.000 0.573 0.437 0.474 0.415 and/or -0.162 - 0.616 0.000 - 0.000 0.267 - 0.879 0.058 - 0.817 -0.066 - 1.014 0.231 - 0.598 protective None (0) 88.7% 100.0% 64.9% 56.3% 69.4% 73.4% eye wear 53.1% - 98.2% N/A - N/A 46.0% - 80.1% 21.6% - 85.8% 36.3% - 90.0% 61.2% - 82.8% Slight (1) 0.0% 0.0% 12.8% 43.7% 13.9% 11.8% N/A - N/A N/A - N/A 4.6% - 31.2% 14.2% - 78.4% 4.1% - 37.8% 5.9% - 22.2% Moderate (2) 11.3% 0.0% 22.2% 0.0% 16.8% 14.8% 1.8% - 46.9% N/A - N/A 10.6% - 40.9% N/A - N/A 2.8% - 58.1% 7.9% - 26.2% Severe(3) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 8 7 28 6 8 57 Nitrile Mean score (0 to 3) 0.466 0.189 0.803 0.656 1.029 0.679 and/or latex -0.053 - 0.985 -0.118 - 0.496 0.443 - 1.162 0.014 - 1.298 0.209 - 1.849 0.440 - 0.918 gloves None (0) 76.7% 93.7% 56.4% 56.3% 46.5% 63.6% 43.5% - 93.4% 72.4% - 98.8% 38.2% - 73.0% 21.6% - 85.8% 18.7% - 76.7% 51.1% - 74.4% Slight (1) 0.0% 0.0% 12.8% 21.9% 20.8% 10.7% N/A - N/A N/A - N/A 4.6% - 31.2% 3.4% - 68.7% 7.6% - 45.6% 5.2% - 20.8% Moderate (2) 23.3% 0.0% 25.0% 21.9% 15.9% 20.0% 6.6% - 56.5% N/A - N/A 12.3% - 44.3% 3.4% - 68.7% 2.6% - 57.5% 11.8% - 32.0% Severe(3) 0.0% 6.3% 5.8% 0.0% 16.8% 5.7% N/A - N/A 1.2% - 27.6% 1.5% - 20.3% N/A - N/A 2.8% - 58.1% 2.2% - 13.8% Observations 8 7 28 6 8 57 E-66 Table E.15 Page 2 of 3 ------- Table E.15. Question B2.2.1: How severe are your concerns about personal protective equipment shortages or supply chain disruptions? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Tyvek suite Mean score (0 to 3) 0.466 0.000 0.501 0.219 0.543 0.409 and/or -0.053 - 0.985 0.000 - 0.000 0.213 - 0.789 -0.134 - 0.571 0.004 - 1.083 0.228 - 0.589 disposable None (0) 76.7% 100.0% 69.4% 78.1% 62.4% 74.6% coveralls 43.5% - 93.4% N/A - N/A 50.3% - 83.5% 31.3% - 96.6% 31.4% - 85.8% 62.6% - 83.8% Slight (1) 0.0% 0.0% 12.8% 21.9% 20.8% 10.7% N/A - N/A N/A - N/A 4.6% - 31.2% 3.4% - 68.7% 7.6% - 45.6% 5.2% - 20.8% Moderate (2) 23.3% 0.0% 16.1% 0.0% 16.8% 13.8% 6.6% - 56.5% N/A - N/A 6.6% - 34.0% N/A - N/A 2.8% - 58.1% 7.3% - 24.6% Severe(3) 0.0% 0.0% 1.7% 0.0% 0.0% 0.8% N/A - N/A N/A - N/A 0.3% - 8.2% N/A - N/A N/A - N/A 0.2% - 4.1% Observations 8 7 28 6 8 57 Sanitizing Mean score (0 to 3) 0.466 0.000 0.726 0.656 1.257 0.644 wipes, -0.053 - 0.985 0.000 - 0.000 0.371 - 1.081 0.014 - 1.298 0.307 - 2.207 0.396 - 0.891 sprays for None (0) 76.7% 100.0% 60.5% 56.3% 46.5% 66.4% cleaning 43.5% - 93.4% N/A - N/A 41.9% - 76.4% 21.6% - 85.8% 18.7% - 76.7% 54.0% - 76.9% work Slight (1) 0.0% 0.0% 12.3% 21.9% 13.9% 9.6% offices, or N/A - N/A N/A - N/A 4.3% - 30.3% 3.4% - 68.7% 4.1% - 37.8% 4.5% - 19.2% gels for Moderate (2) 23.3% 0.0% 21.4% 21.9% 6.9% 17.2% hand 6.6% - 56.5% N/A - N/A 9.9% - 40.2% 3.4% - 68.7% 1.3% - 30.4% 9.4% - 29.3% sanitizing Severe(3) 0.0% 0.0% 5.8% 0.0% 32.7% 6.8% N/A - N/A N/A - N/A 1.5% - 20.3% N/A - N/A 9.9% - 68.2% 2.7% - 16.3% Observations 8 7 28 6 8 57 N/A: confidence interval could not be calculated. E-67 Table E.15 Page 3 of 3 ------- Table E.16. Question B2.2.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All N95 masks Unavailable from 100.0% 0.0% 31.6% 0.0% 44.3% 37.5% and/or supplier(s) N/A - N/A N/A - N/A 9.4% - 67.2% N/A - N/A 10.5% - 84.3% 19.1% - 60.5% elastomeric Delayed / backordered 100.0% 100.0% 70.3% 100.0% 87.0% 80.9% respirators from supplier(s) N/A - N/A N/A - N/A 47.6% - 86.1% N/A - N/A 42.7% - 98.4% 60.7% - 92.0% Transportation / 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Price 0.0% 0.0% 30.2% 0.0% 57.3% 27.7% N/A - N/A N/A - N/A 11.3% - 59.4% N/A - N/A 16.6% - 90.0% 12.6% - 50.5% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 10 2 5 20 Alternative Unavailable from 100.0% 0.0% 11.8% 0.0% 31.3% 24.7% mask supplier(s) N/A - N/A N/A - N/A 1.7% - 50.9% N/A - N/A 5.1% - 79.4% 11.9% - 44.4% options Delayed / backordered 51.3% 0.0% 88.8% 100.0% 87.0% 82.9% (surgical, from supplier(s) 6.6% - 94.0% N/A - N/A 51.4% - 98.4% N/A - N/A 42.7% - 98.4% 61.6% - 93.6% cloth, etc.) Transportation / 0.0% 0.0% 11.2% 0.0% 0.0% 5.9% distribution difficulties N/A - N/A N/A - N/A 1.6% - 48.6% N/A - N/A N/A - N/A 0.8% - 32.2% Price 0.0% 0.0% 11.8% 0.0% 57.3% 17.7% N/A - N/A N/A - N/A 1.7% - 50.9% N/A - N/A 16.6% - 90.0% 7.1% - 37.7% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 9 2 5 19 E-68 Table E.16 Page 1 of 3 ------- Table E.16. Question B2.2.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Face shield Unavailable from 100.0% 24.5% 50.0% 54.7% 37.8% and/or supplier(s) N/A - N/A 5.2% - 65.8% 4.9% - 95.1% 12.3% - 91.2% 15.7% - 66.4% protective Delayed / backordered 0.0% 88.8% 50.0% 100.0% 78.4% eye wear from supplier(s) N/A - N/A 50.8% - 98.4% 4.9% - 95.1% N/A - N/A 55.0% - 91.5% Transportation / 0.0% 11.2% 0.0% 0.0% 7.2% distribution difficulties N/A - N/A 1.6% - 49.2% N/A - N/A N/A - N/A 1.0% - 37.7% Price 0.0% 11.8% 0.0% 77.4% 18.3% N/A - N/A 1.6% - 52.2% N/A - N/A 20.2% - 97.9% 7.2% - 39.2% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 9 2 3 15 Nitrile Unavailable from 100.0% 0.0% 19.7% 0.0% 31.3% 27.9% and/or latex supplier(s) N/A - N/A N/A - N/A 4.4% - 56.4% N/A - N/A 5.2% - 79.2% 12.5% - 51.1% gloves Delayed / backordered 100.0% 100.0% 82.1% 100.0% 100.0% 89.5% from supplier(s) N/A - N/A N/A - N/A 55.0% - 94.5% N/A - N/A N/A - N/A 68.4% - 97.1% Transportation / 48.7% 0.0% 9.0% 0.0% 0.0% 10.5% distribution difficulties 6.1% - 93.3% N/A - N/A 1.3% - 41.8% N/A - N/A N/A - N/A 2.9% - 31.6% Price 48.7% 0.0% 18.4% 0.0% 57.3% 26.2% 6.1% - 93.3% N/A - N/A 4.7% - 50.7% N/A - N/A 16.7% - 90.0% 11.7% - 48.6% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 11 2 5 21 E-69 Table E.16 Page 2 of 3 ------- Table E.16. Question B2.2.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Tyvek suite Unavailable from 100.0% 13.5% 0.0% 44.6% 31.4% and/or supplier(s) N/A - N/A 1.9% - 55.4% N/A - N/A 9.6% - 85.9% 14.7% - 55.0% disposable Delayed / backordered 51.3% 74.4% 100.0% 81.5% 74.1% coveralls from supplier(s) 6.5% - 94.1% 41.5% - 92.3% N/A - N/A 28.3% - 98.0% 51.8% - 88.4% Transportation / 0.0% 12.8% 0.0% 0.0% 7.6% distribution difficulties N/A - N/A 1.7% - 54.9% N/A - N/A N/A - N/A 1.0% - 39.5% Price 0.0% 26.3% 0.0% 81.5% 30.1% N/A - N/A 6.4% - 64.8% N/A - N/A 28.3% - 98.0% 12.1% - 57.3% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 8 1 4 15 Sanitizing Unavailable from 100.0% 21.7% 0.0% 31.3% 30.3% wipes, supplier(s) N/A - N/A 4.9% - 59.9% N/A - N/A 5.2% - 79.1% 14.3% - 53.0% sprays for Delayed / backordered 100.0% 80.2% 100.0% 100.0% 88.6% cleaning from supplier(s) N/A - N/A 51.5% - 93.9% N/A - N/A N/A - N/A 66.1% - 96.9% work Transportation / 48.7% 9.9% 0.0% 0.0% 11.4% offices, or distribution difficulties 6.0% - 93.4% 1.5% - 44.8% N/A - N/A N/A - N/A 3.1% - 33.9% gels for Price 0.0% 20.3% 0.0% 57.3% 22.7% hand N/A - N/A 5.3% - 53.7% N/A - N/A 16.4% - 90.2% 9.6% - 45.0% sanitizing Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 10 2 5 19 N/A: confidence interval could not be ca culated. E-70 Table E.16 Page 3 of 3 ------- Table E.17. Question B2.2.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All N95 masks Seek alternative supplier 51.3% 100.0% 42.9% 50.0% 25.9% 42.9% and/or 6.6% - 94.0% N/A - N/A 15.5% - 75.5% 5.2% - 94.8% 6.0% - 65.7% 21.9% - 66.8% elastomeric Increase purchasing / maintain a 100.0% 0.0% 58.5% 50.0% 87.0% 66.2% respirators larger than typical inventory N/A - N/A N/A - N/A 26.8% - 84.5% 5.2% - 94.8% 42.7% - 98.4% 41.2% - 84.6% Switch chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements w/ neighboring 0.0% 0.0% 42.0% 0.0% 0.0% 23.7% utilities or mutual aid network N/A - N/A N/A - N/A 17.1% - 71.9% N/A - N/A N/A - N/A 8.9% - 49.4% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 10 2 5 20 Alternative Seek alternative supplier 51.3% 100.0% 35.6% 50.0% 13.0% 36.4% mask 6.6% - 94.0% N/A - N/A 10.2% - 73.0% 5.2% - 94.8% 1.6% - 57.3% 16.4% - 62.5% options Increase purchasing / maintain a 100.0% 0.0% 64.4% 50.0% 100.0% 72.5% (surgical, larger than typical inventory N/A - N/A N/A - N/A 27.0% - 89.8% 5.2% - 94.8% N/A - N/A 44.8% - 89.5% cloth, etc.) Switch chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements w/ neighboring 0.0% 0.0% 36.2% 0.0% 0.0% 19.3% utilities or mutual aid network N/A - N/A N/A - N/A 12.5% - 69.2% N/A - N/A N/A - N/A 6.6% - 45.0% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 9 2 5 19 E-71 Table E.17 Page 1 of 3 ------- Table E.17. Question B2.2.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Face shield Seek alternative supplier 0.0% 24.5% 0.0% 22.6% 18.9% and/or N/A - N/A 5.2% - 65.8% N/A - N/A 2.1% - 79.8% 5.1% - 50.2% protective Increase purchasing / maintain a 100.0% 88.2% 50.0% 100.0% 85.2% eye wear larger than typical inventory N/A - N/A 47.8% - 98.4% 4.9% - 95.1% N/A - N/A 53.9% - 96.6% Switch chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements w/ neighboring 0.0% 36.2% 50.0% 0.0% 30.6% utilities or mutual aid network N/A - N/A 13.1% - 68.1% 4.9% - 95.1% N/A - N/A 11.6% - 59.6% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 9 2 3 15 Nitrile Seek alternative supplier 100.0% 0.0% 39.3% 0.0% 13.0% 36.2% and/or latex N/A - N/A N/A - N/A 15.4% - 69.8% N/A - N/A 1.6% - 57.3% 18.3% - 59.0% gloves Increase purchasing / maintain a 100.0% 100.0% 70.9% 100.0% 100.0% 82.9% larger than typical inventory N/A - N/A N/A - N/A 38.6% - 90.4% N/A - N/A N/A - N/A 58.8% - 94.3% Switch chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements w/ neighboring 48.7% 0.0% 29.1% 0.0% 0.0% 22.3% utilities or mutual aid network 6.1% - 93.3% N/A - N/A 9.6% - 61.4% N/A - N/A N/A - N/A 8.3% - 47.7% Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 11 2 5 21 E-72 Table E.17 Page 2 of 3 ------- Table E.17. Question B2.2.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Tyvek suite Seek alternative supplier 51.3% 26.3% 0.0% 18.5% 26.8% and/or 6.5% - 94.1% 6.4% - 64.8% N/A - N/A 2.0% - 71.7% 9.8% - 55.0% disposable Increase purchasing / maintain a 100.0% 73.7% 100.0% 100.0% 84.5% coveralls larger than typical inventory N/A - N/A 35.2% - 93.6% N/A - N/A N/A - N/A 52.1% - 96.5% Switch chemicals, procedures, or 0.0% 0.0% 0.0% 0.0% 0.0% technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements w/ neighboring 0.0% 26.9% 0.0% 0.0% 15.9% utilities or mutual aid network N/A - N/A 10.1% - 54.9% N/A - N/A N/A - N/A 4.8% - 41.5% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 8 1 4 15 Sanitizing Seek alternative supplier 51.3% 42.9% 50.0% 44.3% 45.0% wipes, 6.6% - 94.0% 15.5% - 75.5% 5.2% - 94.8% 10.4% - 84.6% 23.9% - 68.0% sprays for Increase purchasing / maintain a 100.0% 68.4% 50.0% 100.0% 76.1% cleaning larger than typical inventory N/A - N/A 32.8% - 90.6% 5.2% - 94.8% N/A - N/A 48.7% - 91.4% work Switch chemicals, procedures, or 0.0% 0.0% 0.0% 31.3% 6.0% offices, or technologies N/A - N/A N/A - N/A N/A - N/A 5.2% - 79.1% 0.8% - 33.1% gels for Make arrangements w/ neighboring 0.0% 32.1% 0.0% 0.0% 18.5% hand utilities or mutual aid network N/A - N/A 11.5% - 63.4% N/A - N/A N/A - N/A 6.3% - 43.3% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 10 2 5 19 N/A: confidence interval could not be calculated. E-73 Table E.17 Page 3 of 3 ------- Table E.18. Question B2.3.1: How severe are your concerns about shortages or supply chain disruptions involving durable goods and other critical equipment and supplies, etc.? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Filter media Mean score (0 to 3) 0.000 0.152 0.197 0.000 0.168 0.137 0.000 - 0.000 -0.106 - 0.410 -0.038 - 0.432 0.000 - 0.000 -0.102 - 0.437 0.014 - 0.260 None (0) 100.0% 84.8% 90.3% 100.0% 83.2% 91.2% N/A - N/A 43.0% - 97.6% 73.8% - 96.8% N/A - N/A 41.9% - 97.2% 81.4% - 96.1% Slight (1) 0.0% 15.2% 3.9% 0.0% 16.8% 6.0% N/A - N/A 2.4% - 57.0% 0.6% - 21.5% N/A - N/A 2.8% - 58.1% 2.1% - 15.7% Moderate (2) 0.0% 0.0% 1.7% 0.0% 0.0% 0.8% N/A - N/A N/A - N/A 0.3% - 8.2% N/A - N/A N/A - N/A 0.2% - 4.1% Severe(3) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Observations 8 7 28 6 8 57 Granular/ Mean score (0 to 3) 0.000 0.152 0.197 0.437 0.168 0.175 Powdered 0.000 - 0.000 -0.106 - 0.410 -0.038 - 0.432 -0.267 - 1.142 -0.102 - 0.437 0.035 - 0.315 Activated None (0) 100.0% 84.8% 90.3% 78.1% 83.2% 89.3% Carbon (GAC/ N/A - N/A 43.0% - 97.6% 73.8% - 96.8% 31.3% - 96.6% 41.9% - 97.2% 79.0% - 94.8% PAC) Slight (1) 0.0% 15.2% 3.9% 0.0% 16.8% 6.0% N/A - N/A 2.4% - 57.0% 0.6% - 21.5% N/A - N/A 2.8% - 58.1% 2.1% - 15.7% Moderate (2) 0.0% 0.0% 1.7% 21.9% 0.0% 2.8% N/A - N/A N/A - N/A 0.3% - 8.2% 3.4% - 68.7% N/A - N/A 0.7% - 10.4% Severe(3) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Observations 8 7 28 6 8 57 E-74 Table E.18 Page 1 of 5 ------- Table E.18. Question B2.3.1: How severe are your concerns about shortages or supply chain disruptions involving durable goods and other critical equipment and supplies, etc.? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Membrane Mean score (0 to 3) 0.000 0.152 0.197 0.000 0.349 0.159 modules 0.000 - 0.000 -0.106 - 0.410 -0.038 - 0.432 0.000 - 0.000 0.007 - 0.691 0.030 - 0.287 None (0) 100.0% 84.8% 90.3% 100.0% 65.1% 89.0% N/A - N/A 43.0% - 97.6% 73.8% - 96.8% N/A - N/A 29.3% - 89.4% 78.2% - 94.8% Slight (1) 0.0% 15.2% 3.9% 0.0% 34.9% 8.1% N/A - N/A 2.4% - 57.0% 0.6% - 21.5% N/A - N/A 10.6% - 70.7% 3.3% - 18.9% Moderate (2) 0.0% 0.0% 1.7% 0.0% 0.0% 0.8% N/A - N/A N/A - N/A 0.3% - 8.2% N/A - N/A N/A - N/A 0.2% - 4.1% Severe(3) 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.4% Observations 8 7 28 6 8 57 Pumps Mean score (0 to 3) 0.259 0.304 0.361 0.656 0.890 0.426 -0.185 - 0.703 -0.212 - 0.820 0.093 - 0.629 -0.401 - 1.713 0.049 - 1.731 0.200 - 0.651 None (0) 87.1% 84.8% 82.4% 78.1% 60.4% 80.5% 48.4% - 98.0% 43.0% - 97.6% 65.4% - 92.1% 31.3% - 96.6% 27.7% - 85.8% 68.7% - 88.6% Slight (1) 0.0% 0.0% 8.4% 0.0% 6.9% 4.9% N/A - N/A N/A - N/A 2.3% - 26.5% N/A - N/A 1.3% - 30.4% 1.6% - 14.2% Moderate (2) 12.9% 15.2% 0.0% 0.0% 15.9% 6.1% 2.0% - 51.6% 2.4% - 57.0% N/A - N/A N/A - N/A 2.6% - 57.5% 2.1% - 16.6% Severe(3) 0.0% 0.0% 9.2% 21.9% 16.8% 8.5% N/A - N/A N/A - N/A 3.6% - 21.7% 3.4% - 68.7% 2.8% - 58.1% 3.9% - 17.5% Observations 8 7 28 6 8 57 E-75 Table E.18 Page 2 of 5 ------- Table E.18. Question B2.3.1: How severe are your concerns about shortages or supply chain disruptions involving durable goods and other critical equipment and supplies, etc.? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Motors Mean score (0 to 3) 0.259 0.304 0.361 0.656 1.253 0.469 -0.185 - 0.703 -0.212 - 0.820 0.093 - 0.629 -0.401 - 1.713 0.451 - 2.055 0.233 - 0.706 None (0) 87.1% 84.8% 82.4% 78.1% 42.3% 78.3% 48.4% - 98.0% 43.0% - 97.6% 65.4% - 92.1% 31.3% - 96.6% 15.9% - 74.0% 66.1% - 87.0% Slight (1) 0.0% 0.0% 8.4% 0.0% 6.9% 4.9% N/A - N/A N/A - N/A 2.3% - 26.5% N/A - N/A 1.3% - 30.4% 1.6% - 14.2% Moderate (2) 12.9% 15.2% 0.0% 0.0% 34.0% 8.3% 2.0% - 51.6% 2.4% - 57.0% N/A - N/A N/A - N/A 10.2% - 70.2% 3.3% - 19.3% Severe(3) 0.0% 0.0% 9.2% 21.9% 16.8% 8.5% N/A - N/A N/A - N/A 3.6% - 21.7% 3.4% - 68.7% 2.8% - 58.1% 3.9% - 17.5% Observations 8 7 28 6 8 57 Pipes Mean score (0 to 3) 0.259 0.304 0.322 0.875 0.890 0.426 -0.185 - 0.703 -0.212 - 0.820 0.061 - 0.582 -0.089 - 1.838 0.049 - 1.731 0.200 - 0.651 None (0) 87.1% 84.8% 86.3% 56.3% 60.4% 80.5% 48.4% - 98.0% 43.0% - 97.6% 70.9% - 94.2% 21.6% - 85.8% 27.7% - 85.8% 68.7% - 88.6% Slight (1) 0.0% 0.0% 4.5% 21.9% 6.9% 4.9% N/A - N/A N/A - N/A 0.7% - 22.9% 3.4% - 68.7% 1.3% - 30.4% 1.6% - 14.2% Moderate (2) 12.9% 15.2% 0.0% 0.0% 15.9% 6.1% 2.0% - 51.6% 2.4% - 57.0% N/A - N/A N/A - N/A 2.6% - 57.5% 2.1% - 16.6% Severe(3) 0.0% 0.0% 9.2% 21.9% 16.8% 8.5% N/A - N/A N/A - N/A 3.6% - 21.7% 3.4% - 68.7% 2.8% - 58.1% 3.9% - 17.5% Observations 8 7 28 6 8 57 E-76 Table E.18 Page 3 of 5 ------- Table E.18. Question B2.3.1: How severe are your concerns about shortages or supply chain disruptions involving durable goods and other critical equipment and supplies, etc.? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Valves Mean score (0 to 3) 0.259 0.456 0.322 0.875 1.253 0.490 -0.185 - 0.703 -0.317 - 1.230 0.061 - 0.582 -0.089 - 1.838 0.451 - 2.055 0.243 - 0.737 None (0) 87.1% 84.8% 86.3% 56.3% 42.3% 78.3% 48.4% - 98.0% 43.0% - 97.6% 70.9% - 94.2% 21.6% - 85.8% 15.9% - 74.0% 66.1% - 87.0% Slight (1) 0.0% 0.0% 4.5% 21.9% 6.9% 4.9% N/A - N/A N/A - N/A 0.7% - 22.9% 3.4% - 68.7% 1.3% - 30.4% 1.6% - 14.2% Moderate (2) 12.9% 0.0% 0.0% 0.0% 34.0% 6.3% 2.0% - 51.6% N/A - N/A N/A - N/A N/A - N/A 10.2% - 70.2% 2.2% - 16.6% Severe(3) 0.0% 15.2% 9.2% 21.9% 16.8% 10.5% N/A - N/A 2.4% - 57.0% 3.6% - 21.7% 3.4% - 68.7% 2.8% - 58.1% 5.2% - 20.0% Observations 8 7 28 6 8 57 Fuel Mean score (0 to 3) 0.000 0.000 0.360 0.437 0.069 0.223 0.000 - 0.000 0.000 - 0.000 0.027 - 0.692 -0.267 - 1.142 -0.045 - 0.183 0.040 - 0.406 None (0) 100.0% 100.0% 88.0% 78.1% 93.1% 91.4% N/A - N/A N/A - N/A 72.0% - 95.5% 31.3% - 96.6% 69.6% - 98.7% 81.8% - 96.1% Slight (1) 0.0% 0.0% 0.0% 0.0% 6.9% 0.8% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 1.3% - 30.4% 0.2% - 4.1% Moderate (2) 0.0% 0.0% 0.0% 21.9% 0.0% 1.9% N/A - N/A N/A - N/A N/A - N/A 3.4% - 68.7% N/A - N/A 0.3% - 11.3% Severe(3) 0.0% 0.0% 12.0% 0.0% 0.0% 5.9% N/A - N/A N/A - N/A 4.5% - 28.0% N/A - N/A N/A - N/A 2.2% - 14.8% Observations 8 7 28 6 8 57 E-77 Table E.18 Page 4 of 5 ------- Table E.18. Question B2.3.1: How severe are your concerns about shortages or supply chain disruptions involving durable goods and other critical equipment and supplies, etc.? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Vehicles Mean score (0 to 3) 0.000 0.000 0.209 0.219 0.069 0.130 0.000 - 0.000 0.000 - 0.000 -0.028 - 0.446 -0.134 - 0.571 -0.045 - 0.183 0.006 - 0.253 None (0) 100.0% 100.0% 92.5% 78.1% 93.1% 93.6% N/A - N/A N/A - N/A 79.3% - 97.5% 31.3% - 96.6% 69.6% - 98.7% 85.4% - 97.3% Slight (1) 0.0% 0.0% 0.0% 21.9% 6.9% 2.8% N/A - N/A N/A - N/A N/A - N/A 3.4% - 68.7% 1.3% - 30.4% 0.7% - 10.4% Moderate (2) 0.0% 0.0% 1.7% 0.0% 0.0% 0.8% N/A - N/A N/A - N/A 0.3% - 8.2% N/A - N/A N/A - N/A 0.2% - 4.1% Severe(3) 0.0% 0.0% 5.8% 0.0% 0.0% 2.9% N/A - N/A N/A - N/A 1.5% - 20.3% N/A - N/A N/A - N/A 0.7% - 10.6% Observations 8 7 28 6 8 57 N/A: confidence interval could not be calculated. E-78 Table E.18 Page 5 of 5 ------- Table E.19. Question B2.3.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Filter media Unavailable from 100.0% 82.5% 0.0% 67.6% supplier(s) N/A - N/A 63.2% - 92.8% N/A - N/A 21.1% - 94.2% Delayed / backordered 0.0% 57.7% 0.0% 31.2% from supplier(s) N/A - N/A 16.1% - 90.7% N/A - N/A 31.2% - 31.2% Transportation / 0.0% 0.0% 0.0% 0.0% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 1 5 Granular/ Unavailable from 100.0% 82.5% 100.0% 0.0% 73.4% Powdered supplier(s) N/A - N/A 53.5% - 95.1% N/A - N/A N/A - N/A 28.9% - 94.9% Activated Delayed / backordered 0.0% 57.7% 0.0% 0.0% 25.7% Carbon (GAC/ from supplier(s) N/A - N/A 10.8% - 93.9% N/A - N/A N/A - N/A 5.0% - 69.2% PAC) Transportation / 0.0% 0.0% 0.0% 0.0% 0.0% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Price 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 3 1 1 6 E-79 Table E.19 Page 1 of 5 ------- Table E.19. Question B2.3.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Membrane Unavailable from 100.0% 82.5% 0.0% 54.2% modules supplier(s) N/A - N/A 62.5% - 93.0% N/A - N/A 20.9% - 84.1% Delayed / backordered 0.0% 57.7% 0.0% 25.0% from supplier(s) N/A - N/A 15.3% - 91.2% N/A - N/A 25.0% - 25.0% Transportation / 0.0% 0.0% 52.0% 19.9% distribution difficulties N/A - N/A N/A - N/A 12.5% - 89.1% 19.9% - 19.9% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 2 6 Pumps Unavailable from 0.0% 100.0% 80.6% 0.0% 42.3% 56.3% supplier(s) N/A - N/A N/A - N/A 46.5% - 95.2% N/A - N/A 6.1% - 89.3% 27.6% - 81.4% Delayed / backordered 100.0% 0.0% 66.9% 100.0% 100.0% 75.0% from supplier(s) N/A - N/A N/A - N/A 24.1% - 92.8% N/A - N/A N/A - N/A 48.7% - 90.5% Transportation / 0.0% 0.0% 22.2% 0.0% 42.3% 20.2% distribution difficulties N/A - N/A N/A - N/A 3.3% - 70.7% N/A - N/A 6.1% - 89.3% 4.3% - 58.4% Price 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 1 6 1 3 12 E-80 Table E.19 Page 2 of 5 ------- Table E.19. Question B2.3.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Motors Unavailable from 0.0% 100.0% 80.6% 0.0% 29.0% 50.7% supplier(s) N/A - N/A N/A - N/A 46.5% - 95.2% N/A - N/A 4.1% - 79.8% 25.9% - 75.1% Delayed / backordered 100.0% 0.0% 66.9% 100.0% 100.0% 77.5% from supplier(s) N/A - N/A N/A - N/A 24.1% - 92.8% N/A - N/A N/A - N/A 53.1% - 91.3% Transportation / 0.0% 0.0% 22.2% 0.0% 29.0% 18.1% distribution difficulties N/A - N/A N/A - N/A 3.3% - 70.7% N/A - N/A 4.1% - 79.8% 4.0% - 54.2% Price 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 1 6 1 4 13 Pipes Unavailable from 0.0% 100.0% 42.5% 0.0% 42.3% 35.3% supplier(s) N/A - N/A N/A - N/A 9.3% - 84.2% N/A - N/A 6.1% - 89.3% 27.8% - 43.6% Delayed / backordered 100.0% 0.0% 57.5% 100.0% 100.0% 75.0% from supplier(s) N/A - N/A N/A - N/A 15.8% - 90.7% N/A - N/A N/A - N/A 48.7% - 90.5% Transportation / 0.0% 0.0% 0.0% 0.0% 42.3% 10.3% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A 6.1% - 89.3% 1.3% - 50.0% Price 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 1 5 2 3 12 E-81 Table E.19 Page 3 of 5 ------- Table E.19. Question B2.3.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Valves Unavailable from 0.0% 100.0% 42.5% 0.0% 29.0% 31.8% supplier(s) N/A - N/A N/A - N/A 9.3% - 84.2% N/A - N/A 4.1% - 79.8% 25.1% - 39.3% Delayed / backordered 100.0% 0.0% 57.5% 100.0% 100.0% 77.5% from supplier(s) N/A - N/A N/A - N/A 15.8% - 90.7% N/A - N/A N/A - N/A 53.1% - 91.3% Transportation / 0.0% 0.0% 0.0% 0.0% 29.0% 9.3% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A 4.1% - 79.8% 1.2% - 46.5% Price 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 1 5 2 4 13 Fuel Unavailable from 48.6% 0.0% 100.0% 42.8% supplier(s) 27.0% - 70.7% N/A - N/A N/A - N/A 26.0% - 61.4% Delayed / backordered 51.4% 100.0% 100.0% 66.9% from supplier(s) 29.3% - 73.0% N/A - N/A N/A - N/A 46.8% - 82.3% Transportation / 37.2% 0.0% 0.0% 25.3% distribution difficulties 27.8% - 47.7% N/A - N/A N/A - N/A 25.3% - 25.3% Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 4 1 1 6 E-82 Table E.19 Page 4 of 5 ------- Table E.19. Question B2.3.2: For each item, what are you most concerned about? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Vehicles Unavailable from 54.7% 100.0% 0.0% 61.1% supplier(s) 31.7% - 75.9% N/A - N/A N/A - N/A 61.1% - 61.1% Delayed / backordered 45.3% 0.0% 100.0% 38.9% from supplier(s) 24.1% - 68.3% N/A - N/A N/A - N/A 38.9% - 38.9% Transportation / 0.0% 0.0% 0.0% 0.0% distribution difficulties N/A - N/A N/A - N/A N/A - N/A N/A - N/A Price 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 3 1 1 5 N/A: confidence interval could not be calculated. E-83 Table E.19 Page 5 of 5 ------- Table E.20. Question B2.3.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Filter media Seek alternative supplier 0.0% N/A - N/A 40.2% 14.3% - 72.9% 0.0% N/A - N/A 21.7% 21.7% - 21.7% Increase purchasing/ maintain 100.0% 57.7% 0.0% 54.2% a larger than typical inventory N/A - N/A 16.1% - 90.7% N/A - N/A 16.2% - 87.9% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 0.0% 42.3% 0.0% 22.9% ing utilities or mutual aid network N/A - N/A 9.4% - 83.9% N/A - N/A 2.3% - 79.1% Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 1 5 Granular/ Seek alternative supplier 0.0% 40.2% 100.0% 0.0% 35.7% Powdered N/A - N/A 5.5% - 88.5% N/A - N/A N/A - N/A 35.7% - 35.7% Activated Increase purchasing / maintain 100.0% 57.7% 0.0% 0.0% 44.5% Carbon (GAC/ a larger than typical inventory N/A - N/A 10.8% - 93.9% N/A - N/A N/A - N/A 9.0% - 86.7% PAC) Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 0.0% 42.3% 0.0% 0.0% 18.8% ing utilities or mutual aid network N/A - N/A 6.1% - 89.2% N/A - N/A N/A - N/A 2.0% - 72.8% Other 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 1 3 1 1 6 E-84 Table E.20 Page 1 of 5 ------- Table E.20. Question B2.3.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Membrane Seek alternative supplier 0.0% 40.2% 52.0% 37.3% modules N/A - N/A 13.8% - 73.7% 12.5% - 89.1% 37.3% - 37.3% Increase purchasing/ maintain 100.0% 57.7% 0.0% 43.4% a larger than typical inventory N/A - N/A 15.3% - 91.2% N/A - N/A 14.4% - 77.7% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 0.0% 42.3% 52.0% 38.2% ing utilities or mutual aid network N/A - N/A 8.8% - 84.7% 12.5% - 89.1% 11.4% - 74.9% Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 3 2 6 Pumps Seek alternative supplier 100.0% 0.0% 31.9% 0.0% 17.5% 29.6% N/A - N/A N/A - N/A 6.9% - 74.8% N/A - N/A 2.1% - 68.1% 8.9% - 64.4% Increase purchasing / maintain 0.0% 100.0% 66.9% 0.0% 40.2% 49.7% a larger than typical inventory N/A - N/A N/A - N/A 24.1% - 92.8% N/A - N/A 5.5% - 88.5% 18.8% - 80.9% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 100.0% 0.0% 23.4% 100.0% 0.0% 31.4% ing utilities or mutual aid network N/A - N/A N/A - N/A 3.5% - 72.0% N/A - N/A N/A - N/A 8.2% - 70.1% Other 0.0% 0.0% 0.0% 0.0% 42.3% 10.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 6.1% - 89.3% 1.3% - 50.0% Observations 1 1 6 1 3 12 E-85 Table E.20 Page 2 of 5 ------- Table E.20. Question B2.3.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Motors Seek alternative supplier 100.0% 0.0% 31.9% 100.0% 43.4% 45.5% N/A - N/A N/A - N/A 6.9% - 74.7% N/A - N/A 9.2% - 85.4% 21.7% - 71.5% Increase purchasing/ maintain 0.0% 100.0% 66.9% 0.0% 27.5% 44.7% a larger than typical inventory N/A - N/A N/A - N/A 24.1% - 92.8% N/A - N/A 3.8% - 78.7% 17.7% - 75.2% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 100.0% 0.0% 23.4% 0.0% 31.4% 29.4% ing utilities or mutual aid network N/A - N/A N/A - N/A 3.5% - 72.0% N/A - N/A 4.5% - 81.6% 10.4% - 60.0% Other 0.0% 0.0% 0.0% 0.0% 29.0% 9.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 4.1% - 79.8% 1.2% - 46.5% Observations 1 1 6 1 4 13 Pipes Seek alternative supplier 100.0% 0.0% 12.5% 100.0% 0.0% 35.1% N/A - N/A N/A - N/A 1.4% - 58.0% N/A - N/A N/A - N/A 12.6% - 66.9% Increase purchasing / maintain 0.0% 100.0% 57.5% 0.0% 57.7% 44.2% a larger than typical inventory N/A - N/A N/A - N/A 15.8% - 90.7% N/A - N/A 10.7% - 93.9% 15.5% - 77.4% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 100.0% 0.0% 30.1% 0.0% 0.0% 21.5% ing utilities or mutual aid network N/A - N/A N/A - N/A 4.7% - 78.9% N/A - N/A N/A - N/A 4.5% - 61.3% Other 0.0% 0.0% 0.0% 0.0% 42.3% 10.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 6.1% - 89.3% 1.3% - 50.0% Observations 1 1 5 2 3 12 E-86 Table E.20 Page 3 of 5 ------- Table E.20. Question B2.3.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Valves Seek alternative supplier 100.0% 0.0% 12.5% 100.0% 31.4% 41.6% N/A - N/A N/A - N/A 1.4% - 58.0% N/A - N/A 4.5% - 81.6% 19.1% - 68.4% Increase purchasing/ maintain 0.0% 100.0% 57.5% 0.0% 39.6% 39.8% a larger than typical inventory N/A - N/A N/A - N/A 15.8% - 90.7% N/A - N/A 8.1% - 83.0% 14.6% - 71.9% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 100.0% 0.0% 30.1% 0.0% 31.4% 29.4% ing utilities or mutual aid network N/A - N/A N/A - N/A 4.7% - 78.9% N/A - N/A 4.5% - 81.6% 10.4% - 60.0% Other 0.0% 0.0% 0.0% 0.0% 29.0% 9.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 4.1% - 79.8% 1.2% - 46.5% Observations 1 1 5 2 4 13 Fuel Seek alternative supplier 14.2% 2.0% - 57.0% 100.0% N/A - N/A 100.0% N/A - N/A 41.6% 25.0% - 60.3% Increase purchasing / maintain 51.4% 0.0% 0.0% 35.0% a larger than typical inventory 29.3% - 73.0% N/A - N/A N/A - N/A 19.3% - 54.8% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 34.4% 0.0% 0.0% 23.4% ing utilities or mutual aid network 25.7% - 44.2% N/A - N/A N/A - N/A 23.4% - 23.4% Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 4 1 1 6 E-87 Table E.20 Page 4 of 5 ------- Table E.20. Question B2.3.3: What steps have you taken or are you taking to prepare for potential shortages and supply chain disruptions? (select all that apply) American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Supply Percentage Reporting by Population Served Chain Issue Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Vehicles Seek alternative supplier 0.0% N/A - N/A 100.0% N/A - N/A 100.0% N/A - N/A 42.7% 21.3% - 67.2% Increase purchasing/ maintain 22.6% 0.0% 0.0% 13.0% a larger than typical inventory 3.0% - 73.4% N/A - N/A N/A - N/A 1.6% - 57.3% Switch chemicals, procedures, 0.0% 0.0% 0.0% 0.0% or technologies N/A - N/A N/A - N/A N/A - N/A N/A - N/A Make arrangements with neighbor- 54.7% 0.0% 0.0% 31.3% ing utilities or mutual aid network 31.7% - 75.9% N/A - N/A N/A - N/A 31.3% - 31.3% Other 22.6% 3.0% - 73.4% 0.0% N/A - N/A 0.0% N/A - N/A 13.0% 1.6% - 57.3% Observations 3 1 1 5 N/A: confidence interval could not be calculated. E-88 Table E.20 Page 5 of 5 ------- Table E.21. Question B3: Has your organization made any requests for personnel, supplies, or equipment to your tribal, local, or state emergency operations center (EOC), primacy agency, or similar organization? American Indian Utilities Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Yes, entirely fulfilled 49.8% 45.6% 32.9% 25.5% 10.3% 34.1% 21.5% - 78.2% 17.5% - 76.8% 18.9% - 50.8% 4.4% - 71.9% 1.9% - 40.6% 23.7% - 46.4% Yes, partly fulfilled 12.9% 0.0% 26.0% 48.3% 23.7% 21.9% 2.0% - 51.6% N/A - N/A 13.3% - 44.7% 15.4% - 82.8% 6.1% - 59.6% 13.2% - 33.9% Yes, not fulfilled 0.0% 0.0% 0.0% 0.0% 6.9% 0.8% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 1.3% - 30.4% 0.2% - 4.1% No, support was not needed 37.2% 16.4% 19.0% 26.2% 41.0% 25.0% 13.4% - 69.4% 2.7% - 57.9% 9.3% - 35.0% 7.0% - 62.7% 14.4% - 74.1% 16.4% - 36.0% No, but we would have used it if it had 0.0% 15.2% 14.0% 0.0% 0.0% 9.0% been available or if we had known of it N/A - N/A 2.4% - 57.0% 5.4% - 31.7% N/A - N/A N/A - N/A 3.9% - 19.5% Do not know 0.0% 22.7% 8.1% 0.0% 18.1% 9.2% N/A - N/A 5.7% - 58.7% 2.4% - 24.2% N/A - N/A 3.0% - 61.1% 4.0% - 19.8% Observations 8 7 29 5 8 57 N/A: confidence interval could not be calculated. E-89 Table E.21 Page 1 of 1 ------- Table E.22. Question C.l: To what extent did your organization experience shortages of key personnel, including contractors performing critical functions to maintain operations, from January 2020 through present day? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Type Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Licensed or certified operators Mean Score (0- 3) 0.85 0.09 - 1.62 0.99 0.13 - 1.84 0.56 0.28 - 0.83 1.40 0.36 - 2.45 1.30 0.53 - 2.08 0.82 0.56 - 1.09 No Shortage (0) 63.7% 31.6% - 87.0% 50.0% 17.9% - 82.1% 63.7% 45.4% - 78.8% 34.7% 8.2% - 75.9% 35.3% 11.7% - 69.3% 56.2% 43.2% - 68.4% Slight Shortage (1) 0.0% N/A - N/A 17.6% 2.9% - 60.3% 18.4% 8.1% - 36.7% 15.6% 2.7% - 54.8% 15.9% 2.6% - 57.5% 14.6% 7.7% - 25.9% Moderate Shortage (2) 23.3% 6.6% - 56.5% 16.2% 2.5% - 59.4% 16.1% 7.0% - 32.9% 24.2% 3.7% - 72.4% 32.0% 10.1% - 66.4% 20.0% 11.8% - 31.8% Severe Shorage(3) 12.9% 2.0% - 51.6% 16.2% 2.5% - 59.4% 1.7% 0.3% - 8.7% 25.5% 4.4% - 71.9% 16.8% 2.8% - 58.1% 9.2% 4.1% - 19.5% Laboratory technicians/ sample analysts Mean Score (0- 3) 0.37 0.06 - 0.69 0.49 -0.07 - 1.05 0.34 0.11 - 0.58 0.00 0.00 - 0.00 0.68 -0.10 - 1.47 0.38 0.21 - 0.55 No Shortage (0) 62.8% 30.6% - 86.6% 67.6% 30.1% - 91.0% 79.8% 62.9% - 90.2% 100.0% N/A - N/A 65.1% 29.2% - 89.4% 75.1% 62.8% - 84.4% Slight Shortage (1) 37.2% 13.4% - 69.4% 16.2% 2.5% - 59.4% 6.2% 1.5% - 21.8% 0.0% N/A - N/A 18.1% 3.0% - 61.1% 13.7% 7.0% - 25.3% Moderate Shortage (2) 0.0% N/A - N/A 16.2% 2.5% - 59.4% 14.1% 6.0% - 29.7% 0.0% N/A - N/A 0.0% N/A - N/A 9.1% 4.3% - 18.2% Severe Shorage(3) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 16.8% 2.8% - 58.1% 2.1% 0.3% - 11.6% E-90 Table E.22 Page 1 of 4 ------- Table E.22. Question C.l: To what extent did your organization experience shortages of key personnel, including contractors performing critical functions to maintain operations, from January 2020 through present day? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Percentage Reporting by Population Served Type Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Field Workers Mean Score (0- 0.75 1.13 0.80 1.15 1.00 0.89 (meter reading, 3) 0.10 - 1.40 0.53 - 1.72 0.46 - 1.15 0.36 - 1.94 0.37 - 1.62 0.65 - 1.12 sampling, No Shortage 50.8% 32.9% 51.8% 34.7% 42.3% 46.6% maintenance, (0) 21.8% - 79.3% 10.5% - 67.2% 34.0% - 69.1% 8.3% - 75.8% 15.8% - 74.0% 34.6% - 58.9% etc.) Slight Shortage 36.3% 21.5% 20.4% 15.6% 15.9% 22.3% (1) 13.0% - 68.4% 5.1% - 58.0% 9.4% - 38.6% 2.7% - 54.8% 2.6% - 57.5% 13.4% - 34.7% Moderate 0.0% 45.6% 23.7% 49.7% 41.8% 26.9% Shortage (2) N/A - N/A 17.5% - 76.8% 11.8% - 41.9% 15.0% - 84.6% 14.9% - 74.7% 17.4% - 39.1% Severe 12.9% 0.0% 4.1% 0.0% 0.0% 4.2% Shorage(3) 2.0% - 51.6% N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 1.2% - 14.3% Engineering/ Mean Score (0- 0.23 0.54 0.35 0.97 1.04 0.49 design/ 3) -0.16 - 0.62 -0.06 - 1.13 0.02 - 0.68 0.15 - 1.79 0.49 - 1.60 0.26 - 0.71 construction No Shortage 88.7% 64.1% 84.1% 51.7% 28.4% 73.0% personnel (0) 53.1% - 98.2% 26.9% - 89.7% 66.5% - 93.4% 17.2% - 84.6% 7.9% - 64.8% 60.8% - 82.5% Slight Shortage 0.0% 17.9% 5.6% 0.0% 38.9% 9.7% (1) N/A - N/A 2.8% - 62.7% 1.4% - 20.2% N/A - N/A 14.3% - 70.9% 4.6% - 19.3% Moderate 11.3% 17.9% 1.7% 48.3% 32.7% 12.9% Shortage (2) 1.8% - 46.9% 2.8% - 62.7% 0.3% - 8.4% 15.4% - 82.8% 9.8% - 68.3% 6.7% - 23.4% Severe 0.0% 0.0% 8.6% 0.0% 0.0% 4.3% Shorage(3) N/A - N/A N/A - N/A 2.4% - 26.6% N/A - N/A N/A - N/A 1.2% - 14.7% E-91 Table E.22 Page 2 of 4 ------- Table E.22. Question C.l: To what extent did your organization experience shortages of key personnel, including contractors performing critical functions to maintain operations, from January 2020 through present day? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Type Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Critial equipment repair Mean Score (0- 3) 0.49 -0.07 - 1.04 0.67 0.02 - 1.32 0.65 0.29 - 1.01 1.49 0.60 - 2.38 1.12 0.41 - 1.83 0.75 0.50 - 1.00 No Shortage (0) 75.7% 40.9% - 93.3% 63.3% 29.2% - 87.8% 63.6% 44.9% - 78.9% 26.2% 6.9% - 62.8% 28.4% 7.9% - 64.8% 58.3% 46.0% - 69.7% Slight Shortage (1) 0.0% N/A - N/A 6.3% 1.1% - 28.2% 16.4% 6.6% - 35.2% 24.2% 3.7% - 72.4% 47.9% 18.9% - 78.4% 16.7% 9.4% - 27.9% Moderate Shortage (2) 24.3% 6.7% - 59.1% 30.4% 8.6% - 66.9% 11.4% 4.3% - 27.2% 24.2% 3.7% - 72.4% 6.9% 1.2% - 31.1% 16.6% 9.3% - 28.0% Severe Shorage(3) 0.0% N/A - N/A 0.0% N/A - N/A 8.6% 2.4% - 26.5% 25.5% 4.4% - 71.9% 16.8% 2.8% - 58.1% 8.3% 3.5% - 18.6% Administrative Mean Score (0- 3) 0.47 -0.13 - 1.07 0.45 0.06 - 0.83 0.51 0.21 - 0.80 0.48 -0.29 - 1.26 0.79 0.25 - 1.34 0.53 0.31 - 0.75 No Shortage (0) 75.7% 40.9% - 93.3% 55.3% 20.6% - 85.5% 68.0% 50.7% - 81.4% 75.8% 27.6% - 96.3% 44.3% 16.6% - 76.1% 65.5% 52.7% - 76.4% Slight Shortage (1) 12.9% 2.0% - 51.6% 44.7% 14.5% - 79.4% 17.6% 8.1% - 34.1% 0.0% N/A - N/A 32.0% 10.1% - 66.4% 20.3% 12.4% - 31.4% Moderate Shortage (2) 0.0% N/A - N/A 0.0% N/A - N/A 10.3% 3.4% - 27.2% 24.2% 3.7% - 72.4% 23.7% 6.1% - 59.9% 10.1% 4.6% - 20.7% Severe Shorage(3) 11.3% 1.8% - 46.9% 0.0% N/A - N/A 4.1% 0.7% - 21.6% 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 1.1% - 13.9% E-92 Table E.22 Page 3 of 4 ------- Table E.22. Question C.l: To what extent did your organization experience shortages of key personnel, including contractors performing critical functions to maintain operations, from January 2020 through present day? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Percentage Reporting by Population Served Type Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Customer Mean Score (0- 0.23 0.21 0.42 0.48 0.56 0.38 Service 3) -0.16 - 0.62 -0.06 - 0.49 0.16 - 0.68 -0.29 - 1.26 0.18 - 0.94 0.22 - 0.54 No Shortage 88.7% 78.5% 72.2% 75.8% 51.2% 73.6% (0) 53.1% - 98.2% 42.0% - 94.9% 53.6% - 85.3% 27.6% - 96.3% 21.0% - 80.6% 61.5% - 82.9% Slight Shortage 0.0% 21.5% 14.0% 0.0% 41.8% 14.9% (1) N/A - N/A 5.1% - 58.0% 5.4% - 31.5% N/A - N/A 14.9% - 74.7% 7.9% - 26.3% Moderate 11.3% 0.0% 13.9% 24.2% 6.9% 11.6% Shortage (2) 1.8% - 46.9% N/A - N/A 5.5% - 30.9% 3.7% - 72.4% 1.2% - 31.1% 5.8% - 21.7% Severe 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Shorage(3) N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other Mean Score (0- 3.00 0.00 2.52 2.00 3) 3.00 - 3.00 0.00 - 0.00 2.02 - 3.01 0.48 - 3.52 No Shortage 0.0% 100.0% 0.0% 25.5% (0) N/A - N/A N/A - N/A N/A - N/A 2.3% - 83.0% Slight Shortage 0.0% 0.0% 0.0% 0.0% (1) N/A - N/A N/A - N/A N/A - N/A N/A - N/A Moderate 0.0% 0.0% 48.0% 23.6% Shortage (2) N/A - N/A N/A - N/A 11.3% - 87.0% 23.6% - 23.6% Severe 100.0% 0.0% 52.0% 51.0% Shorage(3) N/A - N/A N/A - N/A 13.0% - 88.7% 12.1% - 88.7% Observations 8 7 28 5 8 56 N/A: confidence interval could not be calculated. E-93 Table E.22 Page 4 of 4 ------- Table E.23. Question C.2: To what extent do you expect to experience shortages of key personnel, including contractors performing critical functions to maintain operations, from present day through December 2020? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Type Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Licensed or certified operators Mean Score (0- 3) 0.48 0.04 - 0.93 1.14 0.26 - 2.01 0.58 0.30 - 0.87 1.25 0.13 - 2.36 1.12 0.39 - 1.85 0.75 0.55 - 0.96 No Shortage (0) 63.7% 31.6% - 87.0% 51.3% 19.9% - 81.8% 61.7% 43.6% - 77.0% 50.3% 15.4% - 85.0% 35.3% 11.7% - 69.3% 56.6% 44.6% - 67.8% Slight Shortage (1) 24.3% 6.7% - 59.1% 0.0% N/A - N/A 22.6% 10.7% - 41.5% 0.0% N/A - N/A 34.0% 10.1% - 70.2% 19.6% 11.3% - 31.8% Moderate Shortage (2) 12.0% 2.0% - 48.0% 32.4% 9.0% - 69.9% 11.7% 4.6% - 26.5% 24.2% 3.7% - 72.4% 13.9% 4.0% - 38.5% 15.6% 9.1% - 25.5% Severe Shorage(3) 0.0% N/A - N/A 16.2% 2.5% - 59.4% 4.1% 0.7% - 21.4% 25.5% 4.4% - 71.9% 16.8% 2.8% - 58.1% 8.2% 3.7% - 17.4% Laboratory technicians/ sample analysts Mean Score (0- 3) 0.24 -0.03 - 0.52 0.49 -0.08 - 1.05 0.30 0.02 - 0.57 0.24 -0.15 - 0.63 0.84 0.10 - 1.59 0.38 0.19 - 0.57 No Shortage (0) 75.7% 40.9% - 93.3% 67.6% 29.9% - 91.0% 85.0% 67.2% - 94.0% 75.8% 27.5% - 96.3% 49.2% 20.0% - 79.0% 75.9% 63.0% - 85.3% Slight Shortage (1) 24.3% 6.7% - 59.1% 16.2% 2.5% - 59.8% 4.7% 0.8% - 23.7% 24.2% 3.7% - 72.5% 34.0% 10.1% - 70.2% 14.9% 7.6% - 27.0% Moderate Shortage (2) 0.0% N/A - N/A 16.2% 2.5% - 59.8% 6.1% 1.5% - 21.3% 0.0% N/A - N/A 0.0% N/A - N/A 5.1% 1.7% - 13.9% Severe Shorage(3) 0.0% N/A - N/A 0.0% N/A - N/A 4.3% 0.7% - 22.3% 0.0% N/A - N/A 16.8% 2.8% - 58.4% 4.2% 1.2% - 13.6% E-94 Table E.23 Page 1 of 4 ------- Table E.23. Question C.2: To what extent do you expect to experience shortages of key personnel, including contractors performing critical functions to maintain operations, from present day through December 2020? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Type Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Field Workers (meter reading, sampling, maintenance, etc.) Mean Score (0- 3) 0.98 0.25 - 1.72 1.13 0.30 - 1.95 0.64 0.32 - 0.96 0.48 -0.29 - 1.26 0.87 0.09 - 1.65 0.78 0.53 - 1.03 No Shortage (0) 50.8% 21.8% - 79.3% 48.1% 18.9% - 78.7% 58.6% 40.4% - 74.6% 75.8% 27.6% - 96.3% 53.5% 23.2% - 81.3% 56.6% 43.9% - 68.5% Slight Shortage (1) 12.9% 2.0% - 51.6% 6.3% 1.1% - 28.2% 27.4% 14.5% - 45.5% 0.0% N/A - N/A 22.8% 5.8% - 58.9% 19.3% 11.4% - 30.8% Moderate Shortage (2) 23.3% 6.6% - 56.5% 30.4% 8.6% - 66.9% 5.8% 1.5% - 20.3% 24.2% 3.7% - 72.4% 6.9% 1.2% - 31.1% 13.7% 7.3% - 24.1% Severe Shorage(3) 12.9% 2.0% - 51.6% 15.2% 2.4% - 57.0% 8.2% 2.4% - 24.5% 0.0% N/A - N/A 16.8% 2.8% - 58.1% 10.4% 4.9% - 20.7% Engineering/ design/ construction personnel Mean Score (0- 3) 0.11 -0.08 - 0.31 0.37 -0.15 - 0.89 0.37 0.11 - 0.63 0.24 -0.14 - 0.63 0.70 0.18 - 1.23 0.36 0.19 - 0.52 No Shortage (0) 88.7% 53.1% - 98.2% 78.5% 42.0% - 94.9% 75.3% 57.8% - 87.2% 75.8% 27.6% - 96.3% 46.5% 18.7% - 76.7% 74.5% 62.6% - 83.7% Slight Shortage (1) 11.3% 1.8% - 46.9% 6.3% 1.1% - 28.2% 16.5% 7.1% - 33.6% 24.2% 3.7% - 72.4% 36.7% 13.8% - 67.7% 17.3% 10.1% - 28.1% Moderate Shortage (2) 0.0% N/A - N/A 15.2% 2.4% - 57.0% 4.1% 0.7% - 21.4% 0.0% N/A - N/A 16.8% 2.8% - 58.1% 6.1% 2.3% - 15.2% Severe Shorage(3) 0.0% N/A - N/A 0.0% N/A - N/A 4.1% 0.7% - 21.4% 0.0% N/A - N/A 0.0% N/A - N/A 2.0% 0.3% - 11.5% E-95 Table E.23 Page 2 of 4 ------- Table E.23. Question C.2: To what extent do you expect to experience shortages of key personnel, including contractors performing critical functions to maintain operations, from present day through December 2020? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Percentage Reporting by Population Served Type Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Critial Mean Score (0- 0.36 0.82 0.46 0.76 1.19 0.61 equipment 3) -0.07 - 0.78 0.21 - 1.44 0.15 - 0.76 -0.39 - 1.92 0.47 - 1.91 0.39 - 0.82 repair No Shortage 75.7% 48.1% 74.8% 74.5% 28.4% 65.5% (0) 40.9% - 93.3% 18.8% - 78.8% 56.6% - 87.1% 27.9% - 95.7% 7.9% - 64.8% 53.5% - 75.8% Slight Shortage 12.9% 21.5% 9.0% 0.0% 41.0% 14.6% (1) 2.0% - 51.6% 5.1% - 58.3% 2.5% - 27.5% N/A - N/A 14.4% - 74.2% 7.5% - 26.4% Moderate 11.3% 30.4% 11.9% 0.0% 13.9% 13.6% Shortage (2) 1.8% - 47.0% 8.5% - 67.2% 4.5% - 28.2% N/A - N/A 4.0% - 38.2% 7.4% - 23.8% Severe 0.0% 0.0% 4.3% 25.5% 16.8% 6.2% Shorage(3) N/A - N/A N/A - N/A 0.7% - 22.3% 4.3% - 72.1% 2.8% - 58.4% 2.4% - 15.5% Administrative Mean Score (0- 0.23 0.43 0.39 0.00 0.63 0.36 3) -0.16 - 0.62 -0.17 - 1.04 0.11 - 0.66 0.00 - 0.00 0.07 - 1.19 0.18 - 0.55 No Shortage 88.7% 74.7% 75.5% 100.0% 60.4% 77.8% (0) 53.0% - 98.2% 35.6% - 94.0% 57.0% - 87.8% N/A - N/A 27.6% - 85.9% 65.6% - 86.6% Slight Shortage 0.0% 7.4% 14.5% 0.0% 15.9% 10.2% (1) N/A - N/A 1.3% - 32.7% 5.7% - 32.3% N/A - N/A 2.6% - 57.5% 4.7% - 20.7% Moderate 11.3% 17.9% 5.8% 0.0% 23.7% 9.9% Shortage (2) 1.8% - 47.0% 2.8% - 62.7% 1.5% - 20.5% N/A - N/A 6.1% - 59.9% 4.7% - 19.8% Severe 0.0% 0.0% 4.1% 0.0% 0.0% 2.1% Shorage(3) N/A - N/A N/A - N/A 0.7% - 21.6% N/A - N/A N/A - N/A 0.3% - 11.9% E-96 Table E.23 Page 3 of 4 ------- Table E.23. Question C.2: To what extent do you expect to experience shortages of key personnel, including contractors performing critical functions to maintain operations, from present day through December 2020? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Personnel Percentage Reporting by Population Served Type Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Customer Mean Score (0- 0.23 0.37 0.42 0.00 0.47 0.35 Service 3) -0.16 - 0.62 0.03 - 0.70 0.15 - 0.70 0.00 - 0.00 0.09 - 0.84 0.19 - 0.52 No Shortage 88.7% 63.3% 71.6% 100.0% 60.4% 74.3% (0) 53.1% - 98.2% 29.2% - 87.8% 52.7% - 85.1% N/A - N/A 27.7% - 85.9% 62.1% - 83.6% Slight Shortage 0.0% 36.7% 18.4% 0.0% 32.7% 18.0% (1) N/A - N/A 12.2% - 70.8% 8.1% - 36.7% N/A - N/A 9.9% - 68.3% 10.1% - 30.0% Moderate 11.3% 0.0% 5.8% 0.0% 6.9% 5.7% Shortage (2) 1.8% - 46.9% N/A - N/A 1.5% - 20.3% N/A - N/A 1.2% - 31.1% 2.1% - 14.2% Severe 0.0% 0.0% 4.1% 0.0% 0.0% 2.0% Shorage(3) N/A - N/A N/A - N/A 0.7% - 21.4% N/A - N/A N/A - N/A 0.3% - 11.5% Other Mean Score (0- 3) No Shortage (0) Slight Shortage (1) Moderate Shortage (2) Severe Shorage(3) Observations 8 7 28 5 8 56 N/A: confidence interval could not be calculated. E-97 Table E.23 Page 4 of 4 ------- Table E.24. Question C.3: What factors contribute to personnel shortages you identified in questions C.l and C.2? (check all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Absenteeism (illness, care of family members, daycare closure, virtual schooling, etc.) Mean Score (0-2) 1.42 1.00 - 1.84 1.00 0.19 - 1.81 1.51 1.28 - 1.74 0.99 0.26 - 1.71 1.32 0.94 - 1.70 1.36 1.18 - 1.55 Does Not Contribute (0) 0.0% N/A - N/A 29.3% 4.1% - 80.1% 0.0% N/A - N/A 28.5% 4.6% - 76.7% 0.0% N/A - N/A 6.1% 1.7% - 19.4% Contributes Somewhat (1) 58.3% 19.8% - 88.8% 41.4% 8.7% - 84.0% 49.0% 28.0% - 70.4% 44.5% 10.4% - 84.8% 68.1% 27.2% - 92.4% 51.7% 36.0% - 67.1% Contributes Significantly (2) 41.7% 11.2% - 80.2% 29.3% 4.1% - 80.1% 51.0% 29.6% - 72.0% 27.0% 3.8% - 77.6% 31.9% 7.6% - 72.8% 42.2% 27.8% - 58.1% Layoffs or furloughs Mean Score (0-2) 0.72 -0.04 - 1.48 0.99 0.28 - 1.69 0.85 0.45 - 1.25 0.27 -0.18 - 0.72 0.79 0.15 - 1.44 0.78 0.52 - 1.04 Does Not Contribute (0) 50.6% 12.5% - 88.0% 37.9% 10.3% - 76.5% 45.8% 24.9% - 68.2% 73.0% 22.0% - 96.3% 42.8% 12.7% - 79.3% 47.8% 32.5% - 63.5% Contributes Somewhat (1) 26.3% 3.5% - 77.7% 25.7% 5.6% - 66.8% 23.5% 8.3% - 51.1% 27.0% 3.7% - 78.0% 35.0% 8.4% - 76.1% 26.4% 14.0% - 44.1% Contributes Significantly (2) 23.1% 3.4% - 71.8% 36.4% 9.6% - 75.5% 30.7% 13.2% - 56.3% 0.0% N/A - N/A 22.2% 3.4% - 69.6% 25.8% 14.5% - 41.7% Reduced work hours of current staff Mean Score (0-2) 1.47 0.58 - 2.37 1.24 0.51 - 1.98 0.88 0.51 - 1.24 0.54 -0.35 - 1.43 0.97 0.28 - 1.65 0.97 0.70 - 1.24 Does Not Contribute (0) 26.3% 3.4% - 78.2% 17.1% 2.4% - 63.4% 37.7% 18.7% - 61.5% 73.0% 22.0% - 96.3% 35.0% 8.3% - 76.2% 38.3% 24.8% - 53.9% Contributes Somewhat (1) 0.0% N/A - N/A 41.4% 5.7% - 89.2% 37.0% 17.1% - 62.6% 0.0% N/A - N/A 33.1% 7.9% - 74.1% 26.6% 13.8% - 45.0% Contributes Significantly (2) 73.7% 21.8% - 96.6% 41.4% 5.7% - 89.2% 25.3% 9.8% - 51.3% 27.0% 3.7% - 78.0% 31.9% 7.5% - 73.0% 35.1% 20.7% - 52.9% E-98 Table E.24 Page 1 of 3 ------- Table E.24. Question C.3: What factors contribute to personnel shortages you identified in questions C.l and C.2? (check all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Delayed or cancelled plans to hire staff Mean Score (0-2) 0.35 -0.22 - 0.91 1.75 1.33 - 2.17 1.09 0.72 - 1.45 1.11 0.53 - 1.69 0.95 0.16 - 1.74 1.08 0.90 - 1.27 Does Not Contribute (0) 65.2% 13.5% - 95.8% 0.0% N/A - N/A 31.8% 14.9% - 55.5% 17.5% 2.7% - 61.8% 47.5% 15.0% - 82.3% 31.6% 20.2% - 45.8% Contributes Somewhat (1) 34.8% 4.2% - 86.5% 25.0% 3.5% - 75.5% 27.8% 11.0% - 54.5% 54.0% 16.2% - 87.7% 9.7% 1.4% - 44.9% 28.7% 15.8% - 46.2% Contributes Significantly (2) 0.0% N/A - N/A 75.0% 24.5% - 96.5% 40.4% 21.7% - 62.4% 28.5% 4.6% - 76.5% 42.8% 12.7% - 79.4% 39.7% 29.4% - 51.1% Lack of backup certified personnel Mean Score (0-2) 1.40 0.66 - 2.14 1.75 1.34 - 2.16 1.00 0.70 - 1.30 1.11 0.14 - 2.08 0.92 0.24 - 1.59 1.17 0.95 - 1.39 Does Not Contribute (0) 20.8% 2.7% - 71.2% 0.0% N/A - N/A 21.9% 8.8% - 44.8% 44.5% 10.1% - 85.2% 41.6% 12.2% - 78.5% 24.2% 14.7% - 37.1% Contributes Somewhat (1) 18.3% 2.8% - 63.6% 25.0% 3.6% - 75.0% 56.3% 32.4% - 77.7% 0.0% N/A - N/A 25.3% 4.1% - 73.1% 34.8% 20.5% - 52.4% Contributes Significantly (2) 60.9% 20.4% - 90.5% 75.0% 25.0% - 96.4% 21.8% 7.8% - 47.8% 55.5% 14.8% - 89.9% 33.1% 8.0% - 73.8% 41.0% 26.5% - 57.3% Operators unable to obtain or maintain needed certification due to lack of in-person training Mean Score (0-2) 1.23 0.37 - 2.09 1.68 1.28 - 2.08 0.76 0.44 - 1.08 1.11 0.53 - 1.69 0.52 0.04 - 1.01 0.97 0.75 - 1.18 Does Not Contribute (0) 26.3% 3.4% - 78.2% 0.0% N/A - N/A 42.3% 23.4% - 63.9% 17.5% 2.7% - 61.8% 57.2% 20.7% - 87.3% 33.0% 23.0% - 44.9% Contributes Somewhat (1) 24.3% 3.8% - 72.3% 32.0% 7.1% - 74.4% 39.5% 20.0% - 63.0% 54.0% 16.2% - 87.7% 33.1% 8.0% - 73.8% 37.1% 24.2% - 52.2% Contributes Significantly (2) 49.4% 11.8% - 87.7% 68.0% 25.6% - 92.9% 18.1% 6.2% - 42.4% 28.5% 4.6% - 76.5% 9.7% 1.4% - 44.0% 29.9% 17.6% - 46.0% E-99 Table E.24 Page 2 of 3 ------- Table E.24. Question C.3: What factors contribute to personnel shortages you identified in questions C.l and C.2? (check all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Restrictions on travel Mean Score (0-2) 1.20 0.34 - 2.06 1.33 0.26 - 2.41 1.16 0.76 - 1.56 1.08 0.18 - 1.98 1.05 0.23 - 1.87 1.16 0.85 - 1.47 Does Not Contribute (0) 40.1% 10.1% - 79.9% 33.3% 4.3% - 84.8% 29.9% 12.6% - 55.8% 46.0% 12.2% - 83.9% 47.5% 15.0% - 82.3% 36.5% 21.9% - 54.2% Contributes Somewhat (1) 0.0% N/A - N/A 0.0% N/A - N/A 24.2% 9.8% - 48.4% 0.0% N/A - N/A 0.0% N/A - N/A 11.1% 4.2% - 25.9% Contributes Significantly (2) 59.9% 20.1% - 89.9% 66.7% 15.2% - 95.7% 45.8% 25.8% - 67.3% 54.0% 16.1% - 87.8% 52.5% 17.7% - 85.0% 52.4% 36.6% - 67.7% Lack of I.T. infrastructure (e.g., equipment, network capacity) Mean Score (0-2) 0.63 -0.37 - 1.62 1.33 0.80 - 1.87 0.90 0.49 - 1.32 0.56 0.07 - 1.04 0.52 0.04 - 1.01 0.81 0.56 - 1.07 Does Not Contribute (0) 68.7% 17.9% - 95.7% 0.0% N/A - N/A 40.3% 19.3% - 65.5% 44.5% 10.2% - 85.0% 57.2% 20.4% - 87.4% 42.3% 27.5% - 58.6% Contributes Somewhat (1) 0.0% N/A - N/A 66.7% 15.2% - 95.7% 29.1% 11.7% - 56.0% 55.5% 15.0% - 89.8% 33.1% 7.8% - 74.2% 34.2% 19.8% - 52.3% Contributes Significantly (2) 31.3% 4.3% - 82.1% 33.3% 4.3% - 84.8% 30.7% 13.3% - 56.1% 0.0% N/A - N/A 9.7% 1.4% - 45.0% 23.5% 12.1% - 40.7% Other Mean Score (0-2) 0.00 0.00 - 0.00 0.00 0.00 - 0.00 Does Not Contribute (0) 100.0% N/A - N/A 100.0% N/A - N/A Contributes Somewhat (1) 0.0% N/A - N/A 0.0% N/A - N/A Contributes Significantly (2) 0.0% N/A - N/A 0.0% N/A - N/A Observations 5 6 19 4 6 38 N/A: confidence interval could not be calculated. E-100 Table E.24 Page 3 of 3 ------- Table E.25. Question C.4: What strategies or resources has your organization used to address potential shortages of certified operators, laboratory staff, or other trained personnel during the COVID-19 pandemic? (select all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Strategy or Resource Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Used technology to allow some operational tasks to be performed remotely 49.8% 18.2% - 81.5% 30.4% 8.6% - 67.0% 31.2% 17.2% - 49.8% 49.7% 14.9% - 84.7% 67.3% 31.6% - 90.2% 40.0% 28.1% - 53.2% Used telework for job functions that could be performed remotely 47.6% 18.3% - 78.7% 16.4% 2.6% - 58.8% 33.8% 19.1% - 52.6% 0.0% N/A - N/A 35.3% 11.4% - 69.9% 30.5% 19.7% - 43.9% Decreased staffing/changed shift work while maintaining core operations 32.8% 8.9% - 71.0% 48.1% 18.8% - 78.7% 52.6% 34.0% - 70.5% 24.2% 3.7% - 72.5% 64.7% 30.1% - 88.6% 48.4% 35.4% - 61.5% Delayed non-critical work 48.9% 17.2% - 81.5% 68.3% 30.8% - 91.3% 73.2% 55.6% - 85.7% 39.8% 10.3% - 79.2% 81.9% 38.0% - 97.1% 67.4% 53.8% - 78.6% Increased use of contractors 17.5% 2.7% - 62.2% 21.5% 5.1% - 58.1% 15.9% 6.3% - 34.6% 15.6% 2.5% - 57.3% 23.7% 6.1% - 59.9% 17.9% 10.0% - 30.0% Accessed operators from nearby utilities, via WARN or other mutual aid networks 0.0% N/A - N/A 0.0% N/A - N/A 4.4% 0.7% - 22.8% 0.0% N/A - N/A 0.0% N/A - N/A 2.2% 0.4% - 12.4% Utilized backup laboratory services 0.0% N/A - N/A 15.2% 2.4% - 57.0% 8.9% 2.6% - 26.1% 0.0% N/A - N/A 16.8% 2.8% - 58.2% 8.8% 3.9% - 18.7% Other 17.5% 2.7% - 62.2% 15.2% 2.4% - 57.0% 7.9% 2.5% - 22.1% 10.5% 1.8% - 43.2% 16.8% 2.8% - 58.2% 11.7% 5.6% - 22.8% Observations 6 7 26 5 8 52 N/A: confidence interval could not be calculated. E-101 Table E.25 Page 1 of 1 ------- Table E.26. Question C.4.1: Did the strategies you implemented help mitigate staffing shortages? American Indian Utilities Estimates and 95 Percent Confidence Intervals Strategy or Percentage Reporting by Population Served Resource Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Used technology (e.g., Strategy Did 0.0% 50.0% 11.7% 0.0% 10.3% 12.4% live video feeds) to allow Not Help N/A - N/A 6.7% - 93.3% 3.4% - 33.2% N/A - N/A 1.7% - 42.7% 4.7% - 28.9% some operational tasks Strategy 100.0% 50.0% 88.3% 100.0% 79.4% 85.3% to be performed Helped N/A - N/A 6.7% - 93.3% 66.8% - 96.6% N/A - N/A 47.2% - 94.3% 69.4% - 93.7% remotely Not Sure 0.0% 0.0% 0.0% 0.0% 10.3% 2.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 1.7% - 42.7% 0.4% - 11.3% Used telework for job Strategy Did 0.0% 0.0% 5.4% 0.0% 3.0% functions that could be Not Help N/A - N/A N/A - N/A 1.0% - 25.1% N/A - N/A 0.6% - 14.6% performed remotely Strategy 67.8% 100.0% 81.5% 80.4% 79.8% Helped 18.8% - 95.0% N/A - N/A 48.2% - 95.4% 33.2% - 97.1% 56.2% - 92.4% Not Sure 32.2% 0.0% 13.1% 19.6% 17.2% 5.0% - 81.2% N/A - N/A 2.1% - 51.2% 2.9% - 66.8% 5.6% - 41.8% Decreased staffing/ Strategy Did 0.0% 0.0% 19.7% 0.0% 24.6% 14.9% changed shift work Not Help N/A - N/A N/A - N/A 6.5% - 46.3% N/A - N/A 3.9% - 72.3% 5.7% - 33.8% while maintaining core Strategy 53.3% 100.0% 63.9% 100.0% 75.4% 72.0% operations Helped 7.9% - 93.8% N/A - N/A 38.9% - 83.1% N/A - N/A 27.7% - 96.1% 52.2% - 85.8% Not Sure 46.7% 0.0% 16.4% 0.0% 0.0% 13.1% 6.2% - 92.1% N/A - N/A 4.5% - 44.7% N/A - N/A N/A - N/A 4.5% - 32.6% Delayed non-critical Strategy Did 0.0% 0.0% 8.2% 0.0% 27.9% 9.2% work Not Help N/A - N/A N/A - N/A 2.1% - 27.8% N/A - N/A 7.0% - 66.4% 3.6% - 21.6% Strategy 68.7% 59.6% 73.1% 100.0% 50.0% 68.6% Helped 18.9% - 95.4% 17.8% - 90.9% 49.6% - 88.2% N/A - N/A 18.7% - 81.2% 51.8% - 81.7% Not Sure 31.3% 40.4% 18.6% 0.0% 22.1% 22.1% 4.6% - 81.1% 9.1% - 82.2% 6.7% - 42.4% N/A - N/A 3.8% - 67.4% 11.2% - 39.0% E-102 Table E.26 Page 1 of 2 ------- Table E.26. Question C.4.1: Did the strategies you implemented help mitigate staffing shortages? American Indian Utilities Estimates and 95 Percent Confidence Intervals Strategy or Percentage Reporting by Population Served Resource Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Increased use of Strategy Did 0.0% 29.3% 0.0% 0.0% 0.0% 5.1% contractors Not Help N/A - N/A 3.5% - 82.4% N/A - N/A N/A - N/A N/A - N/A 0.9% - 23.7% Strategy 100.0% 70.7% 72.0% 100.0% 100.0% 82.5% Helped N/A - N/A 17.6% - 96.5% 24.1% - 95.4% N/A - N/A N/A - N/A 50.4% - 95.7% Not Sure 0.0% 0.0% 28.0% 0.0% 0.0% 12.3% N/A - N/A N/A - N/A 4.6% - 75.9% N/A - N/A N/A - N/A 2.0% - 49.3% Accessed operators Strategy Did 0.0% 0.0% from nearby utilities, Not Help N/A - N/A N/A - N/A including via WARN or Strategy 0.0% 0.0% other mutual aid Helped N/A - N/A N/A - N/A networks Not Sure 100.0% N/A - N/A 100.0% N/A - N/A Utilized backup Strategy Did 0.0% 0.0% 0.0% 0.0% laboratory services Not Help N/A - N/A N/A - N/A N/A - N/A N/A - N/A Strategy 100.0% 0.0% 100.0% 50.0% Helped N/A - N/A N/A - N/A N/A - N/A 13.4% - 86.6% Not Sure 0.0% N/A - N/A 100.0% N/A - N/A 0.0% N/A - N/A 50.0% 13.4% - 86.6% Other Strategy Did 0.0% 0.0% 0.0% 0.0% 0.0% Not Help N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Strategy 0.0% 100.0% 0.0% 100.0% 49.6% Helped N/A - N/A N/A - N/A N/A - N/A N/A - N/A 14.2% - 85.4% Not Sure 100.0% 0.0% 100.0% 0.0% 50.4% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 14.6% - 85.8% Observations 3 4 18 2 7 34 N/A: confidence interval could not be calculated. E-103 Table E.26 Page 2 of 2 ------- Table E.27. Question C.5: What is the greatest concern your organization has associated with maintaining staffing during the pandemic? (select one) American Indian Utilities Estimates and 95 Percent Confidence Intervals Concern Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Availability of testing for illness 0.0% 0.0% 18.7% 0.0% 0.0% 9.4% N/A - N/A N/A - N/A 8.1% - 37.3% N/A - N/A N/A - N/A 4.0% - 20.5% Availability of PPE 0.0% 15.2% 10.3% 0.0% 17.2% 9.4% N/A - N/A 2.4% - 57.0% 3.4% - 27.2% N/A - N/A 4.8% - 46.2% 4.3% - 19.3% Ability to house personnel on site 13.0% 0.0% 12.5% 0.0% 0.0% 8.3% 2.1% - 51.5% N/A - N/A 4.3% - 31.2% N/A - N/A N/A - N/A 3.3% - 19.3% Cross-training personnel 43.5% 31.7% 8.0% 15.6% 6.9% 17.1% 15.6% - 76.2% 8.8% - 69.0% 2.2% - 25.6% 2.7% - 54.8% 1.2% - 31.1% 9.3% - 29.3% Protecting high-risk employees 28.6% 16.4% 38.3% 25.5% 25.1% 31.1% 7.8% - 65.5% 2.7% - 58.2% 22.7% - 56.6% 4.4% - 71.9% 6.2% - 62.8% 20.5% - 44.1% Adhering to changing local and state 14.9% 21.5% 12.3% 58.9% 50.8% 22.5% 2.3% - 56.4% 5.1% - 58.0% 4.7% - 28.2% 21.4% - 88.3% 20.9% - 80.1% 13.6% - 34.9% Other 0.0% 15.2% 0.0% 0.0% 0.0% 2.1% N/A - N/A 2.4% - 57.0% N/A - N/A N/A - N/A N/A - N/A 0.3% - 11.8% Observations 7 7 28 5 8 55 N/A: confidence interval could not be calculated. E-104 Table E.27 Page 1 of 1 ------- Table E.28. Question Dl.1.2: Please indicate the state of your organization's operating budget from January 2020 to the present American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Average Operating Budget by Population Served (Dollars) Parameter < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Budgeted $13,500 $60,000 $693,001 $206,541 $2,197,895 $548,508 Revenue $3,458 - $23,542 $60,000 - $60,000 $96,571 - $1,289,431 $55,941 - $357,140 $725,145 - $3,670,645 $126,281 - $970,735 Actual $13,362 $60,000 $672,467 $206,541 $2,176,349 $538,043 Revenue $3,215 - $23,510 $60,000 - $60,000 $73,758 - $1,271,176 $55,941 - $357,140 $444,812 - $3,907,885 $105,629 - $970,458 Budgeted $25,333 $60,000 $673,135 $554,486 $1,632,509 $591,883 Expenses $6,152 - $44,515 $60,000 - $60,000 $57,976 - $1,288,294 $198,602 - $910,371 $793,285 - $2,471,733 $175,684 - $1,008,082 Actual $24,273 $60,000 $660,172 $488,270 $1,093,004 $519,079 Expenses $6,224 - $42,322 $60,000 - $60,000 $45,434 - $1,274,909 $46,818 - $929,723 $593,322 - $1,592,686 $105,954 - $932,203 Observations 3 1 5 2 2 13 E-105 Table E.28 Page 1 of 1 ------- Table E.29. Average Budgeted and Actual Net Revenue (Calculated) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Parameter Average Net Revenue by Population Served (Dollars) < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Budgeted Net Revenue -$11,833 -$35,481 - $11,815 $0 N/A - N/A $19,866 -$82,834 - $122,566 -$347,946 -$854,430 - $158,538 $565,386 -$68,140 - $1,198,912 -$43,375 -$262,338 - $175,588 Actual Net Revenue -$10,911 -$33,154 - $11,332 $0 N/A - N/A $12,295 -$86,363 - $110,953 -$281,730 -$873,782 - $310,323 $1,083,345 -$148,510 - $2,315,200 $18,965 -$251,473 - $289,402 Observations 3 1 5 2 2 13 E-106 Table E.29 Page 1 of 1 ------- Table E.30. Percentage of Utilities with a Deficit/Loss, and Total Deficit/Loss at Those Utilities (Calculated) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Utility Deficits by Population Served (Dollars in Millions) Parameter < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Percentage of Utilities 33% 0% 18% 47% 42% 30% with Deficit/Loss 4% - 87% N/A - N/A 5% - 50% 5% - 93% 5% - 91% 10% - 62% Total Deficit/Loss $0.6 $4.6 $32.2 $0.2 $37.6 (Utilities with Deficit/Loss) $0.6 -$0.6 -$1.9 -$11.0 $32.2 -$32.2 -$0.2 -$0.6 $31.4 -$43.8 Observations 3 1 5 2 2 13 E-107 Table E.30 Page 1 of 1 ------- Table E.31. Average Difference between Actual and Budgeted Net Revenue, Percentage of Utilities with a Shortfall, and Total Shortfall at Those Utilities (Calculated) American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Difference between Actual and Budgeted Net Revenue by Population Served Parameter < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Average Difference in Net Revenue (Actual Minus Budgeted Net Revenue) $922 -$498 - $2,343 $0 $0 -$0 -$7,571 -$25,438 - $10,297 $66,216 -$19,352 - $151,784 $517,959 -$80,370 - $1,116,287 $62,340 -$34,473 - $159,153 Percentage of Utilities with Shortfall 0% N/A - N/A 0% N/A - N/A 9% 1% - 49% 0% N/A - N/A 42% 5% - 91% 7% 3% - 18% Total Shortfall in Utilities with Shortfall (Millions of Dollars) $0.0 N/A - N/A $0.0 N/A - N/A $1.1 -$1.0 -$3.3 $0.0 N/A - N/A $0.2 -$0.2 - $0.6 $1.3 -$0.5 - $3.1 Observations 3 1 5 2 2 13 N/A: confidence interval could not be calculated. E-108 Table E.31 Page 1 of 1 ------- Table E.32. Question D.1.2: Your answers indicate that actual operating revenue was lower than budgeted during the January to present period. What COVID-19-related factors contributed to this? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Nonpayment of bills Mean Score (Oto 2) 0.00 N/A - N/A 1.55 1.17 - 1.94 1.00 N/A - N/A 0.88 0.74 - 1.03 Not a Contributor (0) 100.0% N/A - N/A 14.9% 2.2% - 58.1% 0.0% N/A - N/A 48.1% 34.1% - 62.5% Contributor (1) 0.0% N/A - N/A 14.9% 2.2% - 58.1% 100.0% N/A - N/A 15.5% 5.7% - 35.8% Significant Contributor (2) 0.0% N/A - N/A 70.2% 47.8% - 85.8% 0.0% N/A - N/A 36.4% 36.4% - 36.4% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Decreased use Mean Score (Oto 2) 0.00 N/A - N/A 0.85 0.59 - 1.11 0.00 N/A - N/A 0.44 0.30 - 0.59 Not a Contributor (0) 100.0% N/A - N/A 14.9% 2.2% - 58.1% 100.0% N/A - N/A 55.9% 41.2% - 69.6% Contributor (1) 0.0% N/A - N/A 85.1% 41.9% - 97.8% 0.0% N/A - N/A 44.1% 30.4% - 58.8% Significant Contributor (2) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A E-109 Table E.32 Page 1 of 2 ------- Table E.32. Question D.1.2: Your answers indicate that actual operating revenue was lower than budgeted during the January to present period. What COVID-19-related factors contributed to this? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Factor Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Reduction in Mean Score 0.00 0.23 0.00 0.10 rates/fees (Oto 2) N/A - N/A -0.17 - 0.63 N/A - N/A -0.08 - 0.27 Not a Contributor 100.0% 49.1% 100.0% 73.6% (0) N/A - N/A 26.7% - 71.8% N/A - N/A 56.8% - 85.5% Contributor (1) 0.0% N/A - N/A 14.9% 2.2% - 58.1% 0.0% N/A - N/A 7.7% 1.1% - 39.2% Significant 0.0% 0.0% 0.0% 0.0% Contributor (2) N/A - N/A N/A - N/A N/A - N/A N/A - N/A Do Not Know 0.0% N/A - N/A 36.0% 26.6% - 46.6% 0.0% N/A - N/A 18.7% 18.7% - 18.7% Observations 2 4 1 7 N/A: confidence interval could not be calculated. E-110 Table E.32 Page 2 of 2 ------- Table E.33. Question D.1.3: Your answers indicate that actual operating expenses were higher than budgeted during the January to present period. What COVID-19-related factors contributed? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Personnel Costs Mean Score (Oto 2) 1.31 1.31 - 1.31 1.31 1.31 - 1.31 Not a Contributor (0) 34.5% 34.5% - 34.5% 34.5% 34.5% - 34.5% Contributor (1) 0.0% N/A - N/A 0.0% N/A - N/A Significant Contributor (2) 65.5% 65.5% - 65.5% 65.5% 65.5% - 65.5% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A Consumables Mean Score (Oto 2) 0.98 0.34 - 1.62 0.98 0.34 - 1.62 Not a Contributor (0) 34.5% 34.5% - 34.5% 34.5% 34.5% - 34.5% Contributor (1) 32.7% 2.6% - 90.0% 32.7% 2.6% - 90.0% Significant Contributor (2) 32.7% 2.6% - 90.0% 32.7% 2.6% - 90.0% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A E-lll Table E.33 Page 1 of 2 ------- Table E.33. Question D.1.3: Your answers indicate that actual operating expenses were higher than budgeted during the January to present period. What COVID-19-related factors contributed? American Indian Utilities January to the Present Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Utilities Costs Mean Score (Oto 2) 0.65 -0.63 - 1.94 0.65 -0.63 - 1.94 Not a Contributor (0) 67.3% 10.0% - 97.4% 67.3% 10.0% - 97.4% Contributor (1) 0.0% N/A - N/A 0.0% N/A - N/A Significant Contributor (2) 32.7% 2.6% - 90.0% 32.7% 2.6% - 90.0% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A PPE Mean Score (Oto 2) 0.65 0.65 - 0.65 0.65 0.65 - 0.65 Not a Contributor (0) 34.5% 34.5% - 34.5% 34.5% 34.5% - 34.5% Contributor (1) 65.5% 65.5% - 65.5% 65.5% 65.5% - 65.5% Significant Contributor (2) 0.0% N/A - N/A 0.0% N/A - N/A Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A Observations 3 3 N/A: confidence interval could not be calculated. E-112 Table E.33 Page 2 of 2 ------- Table E.34. Question D.2.1: Do you expect your financial situation for the remainder of the year to improve, to worsen, or to stay about the same, compared with the January to present timeframe? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Value Percentage Reporting by Population Served Type Response < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Operating Mean Score (0 to 2) 1.27 1.00 1.24 1.00 0.69 1.14 Revenue 0.97 - 1.57 N/A - N/A 1.01 - 1.46 N/A - N/A 0.21 - 1.18 1.00 - 1.28 Improve (0) 0.0% 0.0% 6.8% 0.0% 30.5% 7.4% N/A - N/A N/A - N/A 1.7% - 24.0% N/A - N/A 8.3% - 68.2% 2.9% - 17.7% Stay About the Same 73.2% 55.3% 50.4% 100.0% 37.5% 56.6% (1) 37.6% - 92.5% 20.4% - 85.6% 31.9% - 68.7% N/A - N/A 11.1% - 74.1% 43.2% - 69.0% Worsen (2) 26.8% 0.0% 26.5% 0.0% 7.5% 18.9% 7.5% - 62.4% N/A - N/A 14.3% - 43.9% N/A - N/A 1.2% - 34.4% 11.4% - 29.7% Do Not Know 0.0% 44.7% 16.3% 0.0% 24.5% 17.2% N/A - N/A 14.4% - 79.6% 6.4% - 35.5% N/A - N/A 6.0% - 62.4% 9.1% - 30.0% Operating Mean Score (0 to 2) 1.29 1.29 1.19 1.32 0.93 1.20 Expenses 0.96 - 1.61 0.83 - 1.74 1.02 - 1.36 0.84 - 1.79 0.22 - 1.64 1.05 - 1.34 Improve (0) 0.0% 0.0% 0.0% 0.0% 30.5% 3.9% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 8.3% - 68.2% 1.0% - 13.6% Stay About the Same 71.4% 44.7% 64.3% 68.1% 19.5% 57.5% (1) 34.3% - 92.3% 14.4% - 79.6% 44.3% - 80.3% 19.8% - 94.9% 3.2% - 64.1% 43.6% - 70.3% Worsen (2) 28.6% 17.9% 15.1% 31.9% 25.5% 20.2% 7.7% - 65.7% 2.8% - 62.7% 5.8% - 33.7% 5.1% - 80.2% 6.4% - 63.1% 11.5% - 33.0% Do Not Know 0.0% 37.3% 20.6% 0.0% 24.5% 18.4% N/A - N/A 10.3% - 75.5% 8.9% - 40.9% N/A - N/A 6.0% - 62.4% 9.8% - 31.8% Observations 7 6 25 4 7 49 N/A: confidence interval could not be calculated. E-113 Table E.34 Page 1 of 1 ------- Table E.35. Question D.2.2: To what COVID-19-related factors do you attribute the worsening outlook for operating revenue in the remainder of 2020? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Nonpayment of bills Mean Score (0 to 2) 1.00 N/A - N/A 1.53 0.85 - 2.21 1.00 N/A - N/A 1.43 0.84 - 2.01 Not a Contributor (0) 0.0% N/A - N/A 23.4% 4.6% - 65.9% 0.0% N/A - N/A 16.6% 3.3% - 53.6% Contributor (1) 51.3% 6.4% - 94.2% 0.0% N/A - N/A 100.0% N/A - N/A 17.3% 3.3% - 55.9% Significant Contributor (2) 0.0% N/A - N/A 76.6% 34.1% - 95.4% 0.0% N/A - N/A 54.5% 21.7% - 83.8% Do Not Know 48.7% 5.8% - 93.6% 0.0% N/A - N/A 0.0% N/A - N/A 11.6% 1.5% - 53.6% Decreased use Mean Score (0 to 2) 0.49 0.00 - 0.97 0.91 0.01 - 1.82 0.00 N/A - N/A 0.72 0.14 - 1.30 Not a Contributor (0) 51.3% 6.4% - 94.2% 32.6% 8.1% - 72.6% 100.0% N/A - N/A 40.5% 12.5% - 76.4% Contributor (1) 48.7% 5.8% - 93.6% 7.1% 1.0% - 35.7% 0.0% N/A - N/A 16.6% 3.3% - 53.6% Significant Contributor (2) 0.0% N/A - N/A 26.8% 6.7% - 65.0% 0.0% N/A - N/A 19.1% 5.3% - 50.0% Do Not Know 0.0% N/A - N/A 33.5% 8.4% - 73.5% 0.0% N/A - N/A 23.8% 4.9% - 65.4% E-114 Table E.35 Page 1 of 2 ------- Table E.35. Question D.2.2: To what COVID-19-related factors do you attribute the worsening outlook for operating revenue in the remainder of 2020? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Factor Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Reduction in rates/fees Mean Score (0 to 2) 0.00 N/A - N/A 0.49 0.02 - 0.96 1.00 N/A - N/A 0.37 0.01 - 0.73 Not a Contributor (0) 100.0% N/A - N/A 33.9% 10.2% - 69.9% 0.0% N/A - N/A 47.9% 17.0% - 80.6% Contributor (1) 0.0% N/A - N/A 32.6% 8.1% - 72.6% 100.0% N/A - N/A 28.2% 8.6% - 62.2% Significant Contributor (2) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Do Not Know 0.0% N/A - N/A 33.5% 8.4% - 73.5% 0.0% N/A - N/A 23.8% 4.9% - 65.4% Observations 2 7 1 10 N/A: confidence interval could not be calculated. E-115 Table E.35 Page 2 of 2 ------- Table E.36. Question D.2.3: To what COVID-19-related factors do you attribute the worsening outlook for operating expenses in the remainder of 2020? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Factor Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Personnel Mean Score (0 to 2) 0.00 1.70 2.00 1.00 1.15 Costs N/A - N/A 1.25 - 2.15 N/A - N/A N/A - N/A 0.88 - 1.42 Not a Contributor 100.0% 0.0% 0.0% 0.0% 0.0% 23.8% (0) N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A 8.4% - 51.4% Contributor (1) 0.0% 0.0% 30.2% 0.0% 100.0% 27.6% N/A - N/A N/A - N/A 4.9% - 78.4% N/A - N/A N/A - N/A 8.9% - 59.7% Significant 0.0% 0.0% 69.8% 100.0% 0.0% 37.2% Contributor (2) N/A - N/A N/A - N/A 21.6% - 95.1% N/A - N/A N/A - N/A 28.7% - 46.7% Do Not Know 0.0% 100.0% 0.0% 0.0% 0.0% 11.4% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A 1.4% - 53.5% Consumables Mean Score (0 to 2) 0.48 1.00 1.57 1.00 1.00 1.09 0.00 - 0.96 N/A - N/A 1.14 - 2.01 N/A - N/A N/A - N/A 0.88 - 1.30 Not a Contributor 52.0% 0.0% 0.0% 0.0% 0.0% 12.4% (0) 13.5% - 88.2% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 12.4% - 12.4% Contributor (1) 48.0% 100.0% 42.7% 100.0% 100.0% 66.0% 11.8% - 86.5% N/A - N/A 11.2% - 81.5% N/A - N/A N/A - N/A 43.0% - 83.3% Significant 0.0% 0.0% 57.3% 0.0% 0.0% 21.7% Contributor (2) N/A - N/A N/A - N/A 18.5% - 88.8% N/A - N/A N/A - N/A 7.4% - 49.0% Do Not Know 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A E-116 Table E.36 Page 1 of 2 ------- Table E.36. Question D.2.3: To what COVID-19-related factors do you attribute the worsening outlook for operating expenses in the remainder of 2020? American Indian Utilities Present to December Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Factor Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Utilities Mean Score (0 to 2) 0.00 1.00 1.45 1.00 1.00 0.93 Costs N/A - N/A N/A - N/A 0.91 - 1.98 N/A - N/A N/A - N/A 0.61 - 1.25 Not a Contributor 100.0% 0.0% 12.5% 0.0% 0.0% 28.5% (0) N/A - N/A N/A - N/A 1.7% - 54.8% N/A - N/A N/A - N/A 11.0% - 56.3% Contributor (1) 0.0% 100.0% 30.2% 100.0% 100.0% 49.8% N/A - N/A N/A - N/A 4.9% - 78.4% N/A - N/A N/A - N/A 21.7% - 78.1% Significant 0.0% 0.0% 57.3% 0.0% 0.0% 21.7% Contributor (2) N/A - N/A N/A - N/A 18.5% - 88.8% N/A - N/A N/A - N/A 7.4% - 49.0% Do Not Know 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A PPE Mean Score (0 to 2) 0.48 0.00 1.29 1.00 0.71 0.82 0.00 - 0.96 N/A - N/A 0.76 - 1.82 N/A - N/A 0.14 - 1.27 0.50 - 1.14 Not a Contributor 52.0% 100.0% 0.0% 0.0% 29.3% 28.5% (0) 13.5% - 88.2% N/A - N/A N/A - N/A N/A - N/A 2.6% - 86.4% 11.0% - 56.3% Contributor (1) 48.0% 0.0% 71.4% 100.0% 70.7% 60.7% 11.8% - 86.5% N/A - N/A 15.6% - 97.1% N/A - N/A 13.6% - 97.4% 28.8% - 85.5% Significant 0.0% 0.0% 28.6% 0.0% 0.0% 10.8% Contributor (2) N/A - N/A N/A - N/A 2.9% - 84.4% N/A - N/A N/A - N/A 1.3% - 52.1% Do Not Know 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 2 1 4 1 2 10 N/A: confidence interval could not be calculated. E-117 Table E.36 Page 2 of 2 ------- Table E.37. Question D.3.1: If your organization has experienced or anticipates a decrease in cash flow due to COVID-19, what mitigating actions are you taking or planning? (select all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Drawing down days cash 0.0% 0.0% 19.7% 0.0% 0.0% 10.4% on hand N/A - N/A N/A - N/A 7.9% - 41.4% N/A - N/A N/A - N/A 4.1% - 24.0% Drawing on reserve 28.6% 0.0% 52.7% 0.0% 0.0% 33.1% funds 7.6% - 66.1% N/A - N/A 33.2% - 71.5% N/A - N/A N/A - N/A 21.1% - 47.8% Delaying maintenance 42.8% 28.0% 48.4% 54.2% 0.0% 40.2% 15.3% - 75.5% 4.4% - 76.5% 30.0% - 67.3% 14.8% - 88.9% N/A - N/A 27.6% - 54.3% Reducing staff hours 14.9% 58.2% 28.6% 47.5% 36.8% 31.2% 2.3% - 56.8% 16.5% - 90.8% 14.4% - 48.7% 11.8% - 86.0% 9.9% - 75.5% 19.3% - 46.1% Reducing staff pay and/or 0.0% 0.0% 10.2% 0.0% 23.5% 8.1% benefits N/A - N/A N/A - N/A 2.8% - 31.2% N/A - N/A 3.8% - 70.5% 2.8% - 21.3% Laying off staff 14.9% 0.0% 4.6% 0.0% 13.3% 6.8% 2.3% - 56.8% N/A - N/A 0.7% - 25.8% N/A - N/A 2.4% - 49.3% 2.3% - 18.8% Incurring additional debt 14.9% 0.0% 11.3% 0.0% 0.0% 8.7% 2.3% - 56.8% 0.0% - 0.0% 3.8% - 29.4% N/A - N/A N/A - N/A 3.4% - 20.8% Refinancing debt and/or 0.0% 0.0% 13.3% 0.0% 0.0% 7.0% deferring debt payments N/A - N/A N/A - N/A 5.1% - 30.7% N/A - N/A N/A - N/A 2.7% - 16.9% Delaying/canceling capital 13.0% 0.0% 33.2% 20.6% 13.3% 23.0% improvement projects 2.0% - 52.4% N/A - N/A 17.9% - 53.1% 3.4% - 65.5% 2.4% - 49.3% 14.4% - 34.7% Adjusting rates higher than 0.0% 0.0% 6.7% 31.9% 9.0% 7.0% originally planned N/A - N/A N/A - N/A 1.6% - 24.4% 5.1% - 80.4% 1.4% - 40.7% 2.7% - 16.9% Not applicable (no 28.6% 30.2% 15.9% 0.0% 45.2% 21.8% decrease in cash flow) 7.6% - 66.1% 4.6% - 79.4% 6.1% - 35.2% N/A - N/A 13.8% - 81.0% 12.4% - 35.5% Observations 7 4 23 4 6 44 N/A: confidence interval cou d not be calculated. E-118 Table E.37 Page 1 fo 1 ------- Table E.38. Question D.3.2: What type of impact do you think these actions are making or will make in mitigating the decrease in your organization's cash flow? American Indian Utilities Estimates and 95 Percent Confidence Intervals Action Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Drawing down days cash on hand Mean Score (1 to 2) 1.00 N/A - N/A 1.00 N/A - N/A Small Impact (1) 100.0% N/A - N/A 100.0% N/A - N/A Large Impact (2) 0.0% N/A - N/A 0.0% N/A - N/A Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A Observations 4 4 Drawing on reserve funds Mean Score (1 to 2) 1.00 N/A - N/A 1.34 1.01 - 1.66 1.30 1.02 - 1.59 Small Impact (1) 48.0% 5.7% - 93.3% 54.3% 26.5% - 79.7% 53.3% 28.5% - 76.6% Large Impact (2) 0.0% 0.0% - 0.0% 27.6% 9.2% - 59.1% 23.2% 7.6% - 52.5% Do Not Know 52.0% 6.7% - 94.3% 18.1% 4.1% - 53.4% 23.6% 6.7% - 56.9% Observations 2 12 14 Delaying maintenance Mean Score (1 to 2) 1.00 N/A - N/A 1.00 1.00 - 1.00 1.43 1.12 - 1.74 1.62 1.01 - 2.23 1.35 1.08 - 1.61 Small Impact (1) 69.5% 21.0% - 95.1% 100.0% 0.0% - 0.0% 46.1% 21.0% - 73.3% 38.0% 4.4% - 89.1% 53.4% 30.8% - 74.6% Large Impact (2) 0.0% N/A - N/A 0.0% 0.0% - 0.0% 34.3% 13.8% - 62.9% 62.0% 10.9% - 95.6% 28.1% 11.1% - 55.0% Do Not Know 30.5% 4.9% - 79.0% 0.0% 0.0% - 0.0% 19.7% 4.5% - 55.8% 0.0% N/A - N/A 18.5% 6.2% - 44.0% Observations 3 1 11 2 17 E-119 Table E.38 Page 1 of 4 ------- Table E.38. Question D.3.2: What type of impact do you think these actions are making or will make in mitigating the decrease in your organization's cash flow? American Indian Utilities Estimates and 95 Percent Confidence Intervals Action Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Reducing staff hours Mean Score (1 to 2) 2.00 N/A - N/A 1.00 1.00 - 1.00 1.50 1.05 - 1.94 2.00 N/A - N/A 1.00 N/A - N/A 1.52 1.21 - 1.84 Small Impact (1) 0.0% N/A - N/A 48.0% 5.6% - 93.5% 50.4% 14.7% - 85.7% 0.0% N/A - N/A 36.2% 7.4% - 80.1% 37.6% 17.3% - 63.5% Large Impact (2) 100.0% N/A - N/A 0.0% 0.0% - 0.0% 49.6% 14.3% - 85.3% 70.7% 25.9% - 94.3% 0.0% N/A - N/A 41.1% 16.6% - 71.0% Do Not Know 0.0% N/A - N/A 52.0% 6.5% - 94.4% 0.0% N/A - N/A 29.3% 5.7% - 74.1% 63.8% 19.9% - 92.6% 21.3% 8.7% - 43.4% Observations 1 2 6 2 2 13 Reducing staff pay and/or benefits Mean Score (1 to 2) 1.00 N/A - N/A 1.00 N/A - N/A Small Impact (1) 52.0% 12.5% - 89.2% 0.0% N/A - N/A 34.2% 2.3% - 91.9% Large Impact (2) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Do Not Know 48.0% 10.8% - 87.5% 100.0% N/A - N/A 65.8% 8.1% - 97.7% Observations 2 1 3 Laying off staff Mean Score (1 to 2) 2.00 N/A - N/A 2.00 N/A - N/A 1.00 N/A - N/A 1.77 N/A - N/A Small Impact (1) 0.0% N/A - N/A 0.0% N/A - N/A 100.0% N/A - N/A 23.2% N/A - N/A Large Impact (2) 100.0% N/A - N/A 100.0% N/A - N/A 0.0% N/A - N/A 76.8% N/A - N/A Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 1 1 3 E-120 Table E.38 Page 2 of 4 ------- Table E.38. Question D.3.2: What type of impact do you think these actions are making or will make in mitigating the decrease in your organization's cash flow? American Indian Utilities Estimates and 95 Percent Confidence Intervals Action Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Incurring additional debt Mean Score (1 to 2) 2.00 N/A - N/A 2.00 N/A - N/A Small Impact (1) 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Large Impact (2) 0.0% N/A - N/A 100.0% N/A - N/A 68.1% 68.1% - 68.1% Do Not Know 100.0% N/A - N/A 0.0% N/A - N/A 31.9% 31.9% - 31.9% Observations 1 3 4 Refinancing debt and/or deferring debt payments Mean Score (1 to 2) 1.59 0.77 - 2.41 1.59 0.77 - 2.41 Small Impact (1) 34.8% 2.5% - 91.9% 34.8% 2.5% - 91.9% Large Impact (2) 50.0% 4.7% - 95.3% 50.0% 4.7% - 95.3% Do Not Know 15.2% 1.8% - 64.2% 15.2% 1.8% - 64.2% Observations 4 4 Delaying/ canceling capital improvement projects Mean Score (1 to 2) 2.00 N/A - N/A 1.65 1.37 - 1.94 1.00 N/A - N/A 2.00 N/A - N/A 1.67 1.42 - 1.92 Small Impact (1) 0.0% N/A - N/A 34.8% 13.3% - 65.1% 100.0% N/A - N/A 0.0% N/A - N/A 33.2% 14.0% - 60.4% Large Impact (2) 100.0% N/A - N/A 65.2% 34.9% - 86.7% 0.0% N/A - N/A 100.0% N/A - N/A 66.8% 39.6% - 86.0% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 1 9 1 1 12 E-121 Table E.38 Page 3 of 4 ------- Table E.38. Question D.3.2: What type of impact do you think these actions are making or will make in mitigating the decrease in your organization's cash flow? American Indian Utilities Estimates and 95 Percent Confidence Intervals Action Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Adjusting rates Mean Score (1 to 2.00 1.00 1.50 higher than 2) N/A - N/A N/A - N/A 0.51 - 2.49 originally Small Impact (1) 0.0% 100.0% 0.0% 34.8% planned N/A - N/A N/A - N/A N/A - N/A 2.6% - 91.6% Large Impact (2) 69.6% 12.7% - 97.3% 0.0% N/A - N/A 0.0% N/A - N/A 34.8% 2.6% - 91.6% Do Not Know 30.4% 2.7% - 87.3% 0.0% N/A - N/A 100.0% N/A - N/A 30.4% 30.4% - 30.4% Observations 2 1 1 4 N/A: confidence interval could not be calculated. E-122 Table E.38 Page 4 of 4 ------- Table E.39. Question D.4: Which of the following is your organization considering regarding capital infrastructure projects due to COVID-19? (select all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Changes Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Not applicable (no projects planned) 13.7% 2.2% - 53.0% 37.3% 10.2% - 75.7% 20.7% 9.6% - 39.1% 47.5% 12.0% - 85.8% 0.0% N/A - N/A 20.9% 11.9% - 34.1% No changes to current or planned projects 0.0% N/A - N/A 17.9% 2.8% - 62.7% 15.9% 6.1% - 35.3% 20.6% 3.4% - 65.3% 38.0% 12.1% - 73.1% 16.6% 9.0% - 28.9% Pausing/slowing a project for which construction has begun 0.0% N/A - N/A 19.4% 3.1% - 64.3% 25.8% 12.2% - 46.8% 0.0% N/A - N/A 0.0% N/A - N/A 15.3% 7.5% - 28.7% Delaying starting a project 42.8% 15.4% - 75.5% 17.9% 2.8% - 62.7% 27.6% 14.2% - 46.6% 0.0% N/A - N/A 62.0% 26.9% - 87.9% 31.5% 20.2% - 45.6% Accelerating starting a project 14.9% 2.3% - 56.8% 0.0% 0.0% - 0.0% 10.0% 2.7% - 30.5% 0.0% N/A - N/A 0.0% N/A - N/A 7.5% 2.6% - 19.6% Reducing the scope or funding for a project for which construction has begun 0.0% N/A - N/A 17.9% 2.8% - 62.7% 4.5% 0.7% - 25.0% 0.0% N/A - N/A 54.6% 22.0% - 83.7% 11.8% 5.2% - 24.6% Increasing the scope or funding for a project (current or planned) 14.9% 2.3% - 56.8% 0.0% N/A - N/A 7.2% 1.7% - 25.2% 31.9% 5.1% - 80.2% 0.0% N/A - N/A 8.3% 3.2% - 20.1% Delaying applying for a subsidized loan/grant by at least six months 14.9% 2.3% - 56.8% 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 2.6% 0.4% - 14.5% Accelerating interest in applying for a subsidized loan/grant for a shovel-ready project 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 31.9% 5.1% - 80.2% 0.0% N/A - N/A 2.2% 0.3% - 13.5% Other 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Do not know 13.7% 2.2% - 53.0% 7.4% 1.2% - 34.0% 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 3.3% 0.8% - 12.5% Observations 7 6 24 4 7 48 N/A: confidence interval could not be calculated. E-123 Table E.39 Page 1 of 1 ------- Table E.40. Question D.5: In response to COVID-19, what actions has your organization taken to help alleviate economic impacts on customers? (select all that apply) American Indian Utilities Estimates and 95 Percent Confidence Intervals Actions Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Suspended service 42.8% 17.9% 52.1% 54.2% 26.9% 42.8% shutoffs 15.4% - 75.5% 2.8% - 62.7% 32.9% - 70.7% 15.1% - 88.8% 6.5% - 66.2% 29.7% - 57.0% Waived late payment fees 42.8% 17.9% 39.8% 33.6% 26.9% 35.3% 15.4% - 75.5% 2.8% - 62.7% 22.6% - 59.9% 5.8% - 80.7% 6.5% - 66.2% 23.2% - 49.6% Provided extensions on 42.8% 35.9% 43.1% 33.6% 26.9% 39.3% bill payment 15.4% - 75.5% 10.3% - 73.1% 25.3% - 62.9% 5.8% - 80.7% 6.5% - 66.2% 26.6% - 53.7% Expanded customer 28.6% 17.9% 13.9% 33.6% 0.0% 16.5% assistance programs 7.7% - 65.8% 2.8% - 62.7% 4.8% - 33.8% 5.8% - 80.7% N/A - N/A 8.5% - 29.6% Expanded water 14.9% 17.9% 13.9% 0.0% 7.5% 12.8% conservation programs 2.3% - 56.8% 2.8% - 62.7% 4.8% - 33.8% N/A - N/A 1.2% - 34.4% 5.9% - 25.4% Delayed or eliminated 14.9% 0.0% 23.0% 0.0% 7.5% 14.9% planned rate adjustment 2.3% - 56.8% N/A - N/A 10.5% - 43.4% N/A - N/A 1.2% - 34.4% 7.5% - 27.5% Lowered rates 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Other 14.9% 0.0% 2.0% 0.0% 26.9% 7.1% 2.3% - 56.8% N/A - N/A 0.4% - 10.3% N/A - N/A 6.5% - 66.2% 2.7% - 17.4% None (no actions taken) 28.6% 56.7% 21.4% 31.9% 46.1% 31.3% 7.7% - 65.8% 22.3% - 85.7% 9.4% - 41.8% 5.1% - 80.2% 17.1% - 78.1% 19.8% - 45.7% Do not know 0.0% 7.4% 9.7% 13.9% 0.0% 6.8% N/A - N/A 1.2% - 34.0% 2.6% - 30.6% 2.1% - 54.5% 0.0% - 0.0% 2.5% - 17.2% Observations 7 6 24 4 7 48 N/A: confidence interval cou d not be calculated. E-124 Table E.40 Page 1 of 1 ------- Table E.41. Question El: What COVID-19-related conditions have interfered with your organization's ability to complete the required sampling needed to operate your system and to determine compliance with regulations? American Indian Utilities Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Lack of available personnel 14.9% 0.0% 21.7% 0.0% 0.0% 13.1% for sample collection 2.3% - 56.8% N/A - N/A 9.5% - 42.2% N/A - N/A N/A - N/A 6.0% - 26.0% Lack of available supplies 14.9% 0.0% 0.0% 0.0% 18.0% 5.0% for sampling and/or shipping 2.3% - 56.8% N/A - N/A N/A - N/A N/A - N/A 3.0% - 61.3% 1.4% - 17.1% Lack of available personal 0.0% 0.0% 6.9% 0.0% 18.0% 5.7% protective equipment N/A - N/A N/A - N/A 1.6% - 24.7% N/A - N/A 3.0% - 61.3% 1.8% - 16.6% Lack of access to approved 0.0% 0.0% 18.2% 0.0% 18.0% 11.2% monitoring locations N/A - N/A N/A - N/A 8.0% - 36.1% N/A - N/A 3.0% - 61.3% 5.4% - 21.8% Other 0.0% 0.0% 5.0% 0.0% 0.0% 2.4% N/A - N/A N/A - N/A 0.8% - 25.8% N/A - N/A N/A - N/A 0.4% - 13.8% None 56.5% 100.0% 65.1% 100.0% 82.0% 73.1% 23.5% - 84.6% N/A - N/A 46.1% - 80.3% N/A - N/A 38.7% - 97.0% 59.5% - 83.4% Do not know 13.7% 0.0% 0.0% 0.0% 0.0% 2.4% 2.2% - 53.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 0.4% - 13.8% Observations 7 6 23 4 7 47 N/A: confidence interval could not be calculated. E-125 Table E.41 Page 1 of 1 ------- Table E.42. Question E2: What COVID-19-related conditions have interfered with your organization's ability to complete required laboratory analyses needed to operate your system and to determine compliance with regulations? American Indian Utilities Estimates and 95 Percent Confidence Intervals Percentage Reporting by Population Served Response < 101 101 - 500 501 - 3,300 3,301 -10,000 > 10,000 All Lack of available laboratory 0.0% 0.0% 5.0% 0.0% 18.0% 4.8% personnel N/A - N/A N/A - N/A 0.8% - 25.8% N/A - N/A 3.0% - 61.3% 1.4% - 15.6% Lack of available supplies for 0.0% 0.0% 5.0% 0.0% 18.0% 4.8% sampling and/or shipping N/A - N/A N/A - N/A 0.8% - 25.8% N/A - N/A 3.0% - 61.3% 1.4% - 15.6% Lack of available personal 0.0% 0.0% 6.9% 0.0% 18.0% 5.7% protective equipment N/A - N/A N/A - N/A 1.6% - 24.7% N/A - N/A 3.0% - 61.3% 1.8% - 16.6% Internal laboratory capacity 0.0% 0.0% 5.0% 0.0% 0.0% 2.4% shortages that delay timely analysis N/A - N/A N/A - N/A 0.8% - 25.8% N/A - N/A N/A - N/A 0.4% - 13.8% Decreased access to external 0.0% 0.0% 0.0% 0.0% 18.0% 2.4% laboratory services N/A - N/A N/A - N/A N/A - N/A N/A - N/A 3.0% - 61.3% 0.4% - 13.8% Delays in external laboratory 0.0% 0.0% 10.1% 0.0% 18.0% 7.3% services N/A - N/A N/A - N/A 2.9% - 29.3% N/A - N/A 3.0% - 61.3% 2.7% - 18.0% Sample transport delays 14.9% 0.0% 9.8% 0.0% 19.5% 10.0% 2.3% - 56.8% N/A - N/A 2.6% - 30.8% N/A - N/A 3.1% - 64.4% 3.9% - 23.1% Travel restrictions 0.0% 0.0% 26.7% 0.0% 37.5% 17.9% N/A - N/A N/A - N/A 13.1% - 46.9% N/A - N/A 11.0% - 74.3% 9.5% - 31.1% Revenue interruption 0.0% 0.0% 4.8% 0.0% 19.5% 4.9% N/A - N/A N/A - N/A 0.7% - 26.1% N/A - N/A 3.1% - 64.4% 1.3% - 17.0% Other 13.7% 0.0% 0.0% 0.0% 0.0% 2.4% 2.2% - 53.3% N/A - N/A N/A - N/A N/A - N/A N/A - N/A 0.4% - 13.8% None 71.4% 92.6% 68.5% 100.0% 62.5% 73.7% 34.0% - 92.3% 66.0% - 98.8% 48.6% - 83.3% N/A - N/A 25.7% - 89.0% 59.8% - 84.1% Do not know 0.0% 7.4% 0.0% 0.0% 0.0% 1.0% N/A - N/A 1.2% - 34.0% N/A - N/A N/A - N/A N/A - N/A 0.2% - 5.3% Observations 7 6 23 4 7 47 N/A: confidence interval could not be calculated. E-126 Table E.42 Page 1 of 1 ------- Table E.43. Question Fl: Has your organization experienced any issues or concerns related to cybersecurity during the pandemic? (Yes/No) American Indian Utilities Estimates and 95 Percent Confidence Intervals Response Percentage Reporting by Population Served < 101 101 - 500 501 - 3,300 3,301 - 10,000 > 10,000 All Percentage of Systems with Cybersecurity Concerns 0.0% 0.0% - 0.0% 0.0% 0.0% - 0.0% 4.8% 0.7% - 26.1% 0.0% 0.0% - 0.0% 7.5% 1.2% - 34.4% 3.3% 0.8% - 12.7% Observations 7 6 23 4 7 47 E-127 Table E.43 Page 1 of 1 ------- Table E.44. Gl. Looking ahead to the next several months, please indicate your level of concern about topics covered in this survey. American Indian Utilities Estimates and 95 Percent Confidence Intervals Topics of Concern Response Percentage Reporting by Population Served < 101 > 10,000 501 - 3,300 3,301 -10,000 > 10,000 All Supply Chain Mean Score 1.00 0.45 - 1.55 1.07 0.46 - 1.68 1.21 0.99 - 1.44 0.79 0.47 - 1.12 1.12 0.51 - 1.73 1.12 0.94 - 1.29 No Concern 28.6% 7.6% - 66.1% 23.6% 3.7% - 71.2% 7.9% 2.1% - 25.6% 20.6% 3.4% - 65.4% 30.5% 8.2% - 68.4% 17.5% 9.5% - 29.8% Mild Concern 42.8% 15.3% - 75.5% 45.5% 12.4% - 83.1% 62.9% 42.4% - 79.6% 79.4% 34.6% - 96.6% 26.9% 6.5% - 66.2% 53.5% 39.5% - 67.1% Serious Concern 28.6% 7.6% - 66.1% 30.9% 7.1% - 72.4% 29.2% 14.3% - 50.5% 0.0% N/A - N/A 42.5% 14.7% - 76.1% 29.0% 18.1% - 42.9% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 7 5 23 4 7 46 Workforce Mean Score 1.28 0.65 - 1.91 1.18 0.61 - 1.75 1.25 1.02 - 1.47 1.46 0.99 - 1.93 1.12 0.51 - 1.73 1.24 1.05 - 1.43 No Concern 28.6% 7.6% - 66.1% 17.9% 2.7% - 63.1% 8.0% 1.9% - 27.6% 0.0% 0.0% - 0.0% 30.5% 8.1% - 68.6% 15.6% 7.8% - 28.9% Mild Concern 14.9% 2.2% - 57.2% 46.2% 17.0% - 78.3% 59.4% 38.8% - 77.1% 54.2% 15.0% - 88.8% 26.9% 6.4% - 66.4% 44.6% 31.4% - 58.6% Serious Concern 56.5% 23.4% - 84.7% 35.9% 10.2% - 73.3% 32.7% 17.3% - 53.0% 45.8% 11.2% - 85.0% 42.5% 14.7% - 76.0% 39.8% 27.8% - 53.1% Do Not Know 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A Observations 7 6 22 4 7 46 E-128 Table E.44 Page 1 of 3 ------- Table E.44. Gl. Looking ahead to the next several months, please indicate your level of concern about topics covered in this survey. American Indian Utilities Estimates and 95 Percent Confidence Intervals Topics of Concern Response Percentage Reporting by Population Served < 101 > 10,000 501 - 3,300 3,301 -10,000 > 10,000 All Financial Mean Score 0.99 0.22 - 1.76 1.00 1.00 - 1.00 1.20 0.87 - 1.54 1.48 1.00 - 1.95 0.93 0.22 - 1.64 1.14 0.91 - 1.36 No Concern 40.7% 10.6% - 79.9% 0.0% N/A - N/A 27.0% 13.2% - 47.4% 0.0% N/A - N/A 30.5% 8.0% - 69.0% 23.9% 13.9% - 37.9% Mild Concern 19.6% 2.9% - 66.1% 91.0% 59.8% - 98.6% 25.6% 11.5% - 47.6% 52.5% 14.1% - 88.1% 19.5% 3.0% - 65.3% 34.1% 21.2% - 49.9% Serious Concern 39.7% 10.7% - 78.4% 0.0% 0.0% - 0.0% 47.4% 28.4% - 67.2% 47.5% 11.9% - 85.9% 25.5% 6.3% - 63.4% 37.2% 24.4% - 52.0% Do Not Know 0.0% N/A - N/A 9.0% N/A - N/A 0.0% N/A - N/A 0.0% N/A - N/A 24.5% N/A - N/A 4.8% N/A - N/A Observations 5 5 22 4 7 43 Analytical Support Mean Score 0.66 0.06 - 1.27 0.74 0.33 - 1.16 0.53 0.26 - 0.79 0.69 0.23 - 1.15 0.69 0.35 - 1.04 0.61 0.43 - 0.79 No Concern 51.1% 18.1% - 83.2% 23.6% 3.6% - 71.8% 58.1% 38.8% - 75.2% 20.6% 3.4% - 65.4% 30.5% 8.0% - 68.8% 45.9% 33.3% - 59.0% Mild Concern 31.5% 8.6% - 69.2% 67.3% 25.6% - 92.5% 31.3% 16.1% - 52.0% 45.8% 11.1% - 85.1% 69.5% 31.2% - 92.0% 42.3% 29.7% - 56.1% Serious Concern 17.5% 2.6% - 62.6% 0.0% N/A - N/A 10.6% 3.1% - 30.8% 0.0% N/A - N/A 0.0% 0.0% - 0.0% 8.1% 2.8% - 21.2% Do Not Know 0.0% N/A - N/A 9.0% N/A - N/A 0.0% N/A - N/A 33.6% N/A - N/A 0.0% N/A - N/A 3.7% N/A - N/A Observations 6 5 22 4 7 44 E-129 Table E.44 Page 2 of 3 ------- Table E.44. Gl. Looking ahead to the next several months, please indicate your level of concern about topics covered in this survey. American Indian Utilities Estimates and 95 Percent Confidence Intervals Topics of Percentage Reporting by Population Served Concern Response < 101 > 10,000 501 - 3,300 3,301 -10,000 > 10,000 All Cybersecurity Mean Score 0.59 0.72 0.47 0.46 0.94 0.58 0.17 - 1.02 -0.01 - 1.45 0.18 - 0.76 -0.02 - 0.93 0.41 - 1.47 0.39 - 0.78 No Concern 40.7% 47.3% 64.0% 54.2% 30.5% 52.9% 10.6% - 79.9% 14.9% - 82.1% 42.4% - 81.1% 14.9% - 88.9% 8.0% - 69.0% 38.8% - 66.6% Mild Concern 59.3% 21.8% 25.3% 45.8% 44.9% 34.2% 20.1% - 89.4% 3.3% - 69.6% 11.9% - 46.0% 11.1% - 85.1% 15.1% - 78.9% 21.8% - 49.2% Serious 0.0% 21.8% 10.6% 0.0% 24.5% 11.8% Concern N/A - N/A 3.3% - 69.6% 3.1% - 30.8% N/A - N/A 6.0% - 62.5% 5.2% - 24.5% Do Not Know 0.0% 9.0% 0.0% 0.0% 0.0% 1.1% N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A N/A - N/A Observations 5 5 22 4 7 43 N/A: confidence interval could not be calculated. E-130 Table E.44 Page 3 of 3 ------- |