A EPA United States Environmental Protection Agency Fiscal Year 2011 Drinking Water and Ground Water Statistics Office of Water (4606M) EPA 816-R-13-003 March 2013 ------- Table of Contents Introduction 4 Acronyms and Abbreviations 5 Public Water System Data Summaries 8 National 8 System Size by Population Served 8 Water Source 9 States 10 Tribes by EPA Regions 15 Commonwealths and Territories 16 Percentage of Community Water Systems Meeting Health-based Standards 17 Community Water Systems (CWS) Violations 18 CWS Violations Reported Nationally by Fiscal Year 18 Violation Totals by Fiscal Year. 18 Systems in Violation by Fiscal Year. 19 Population Affected by Fiscal Year. 19 CWS Violations Reported Nationally by System Size 20 Number of Violations 20 Number of Systems in Violation 20 Population Affected 20 NTNCWS Violations Reported by Fiscal Year 21 Number of Violations 21 Number of Systems in Violation 22 Population Affected 22 TNCWS Violations Reported by Fiscal Year 23 Number of Violations 23 Number of Systems in Violation 24 Population Affected 24 MCL, MRDL and TT Violations Reported 25 Microbial Rules Violations 25 Total Coliform Rule (TCR) 25 Stage 1 Disinfectant Byproducts (Stage 1 DBP) 25 Surface Water Treatment Rule (SWTR) 26 Interim Enhanced and Long Term-1 Surface Water Treatment Rule (IE<1 SWTR) 26 Organics Rules Violations 27 Volatile Organic Compounds (VOC) 27 Synthetic Organic Compounds 27 Inorganic Compounds (IOCs) 28 Nitrate and Nitrite 28 Arsenic 28 Other Inorganic Compounds 29 Radionuclides 29 Lead and Copper Rule 29 Monitoring Violations Reported 30 Microbial Rules Violations 30 2 ------- Table of Contents Total Coliform Rule (TCR) 30 Stage 1 Disinfectant Byproducts (Stage 1 DBP) 30 Surface Water Treatment Rule (SWTR) 31 Interim Enhanced and Long Term-1 Surface Water Treatment Rule (IE<1 SWTR) 31 Organics Rules Violations 32 Volatile Organic Compounds (VOC) 32 Synthetic Organic Compounds 32 Inorganic Compounds (IOCs) 33 Nitrate and Nitrite 33 Arsenic 33 Other Inorganic Compounds 34 Radionuclides 34 Lead and Copper Rule 34 Underground Injection Control (UIC) Program - Inventory of Wells 35 Well Inventory 3 5 Tribal UIC Well Inventory by EPA Region 37 3 ------- Introduction As of September 30, 2011, there were 152,713 active public drinking water systems in the United States regularly supplying drinking water to at least 25 people or having 15 service connections for 180 or more days per year. The tables in this report group these water systems into categories that highlight their similarities and their differences. For example, most people in the United States (a little less than 300 million) receive their drinking water from one of the 51,356 community water systems (CWS). Of these water systems, 4,221 or 8%, serve more than 246 million or 82%, of the total population. Similarly, more water systems use ground water rather than surface water as a source, but more people receive their water from a system supplied by surface water. The drinking water system statistics on the following pages are taken from the Safe Drinking Water Information System/Federal version (SDWIS/Fed). SDWIS/Fed is the U.S. Environmental Protection Agency's (EPA) official record of public drinking water systems, their violations of EPA and state regulations, and enforcement actions taken by EPA or states as a result of those violations. EPA maintains these data using information collected and submitted to EPA by the states. This report also contains figures on the types and locations of underground injection control (UIC) wells. EPA and states regulate the placement and operation of these wells to ensure that they do not threaten underground sources of drinking water. The underground injection control program statistics are based on data reported by the states and collected in EPA's UIC data warehouse. Notice: Compliance statistics are based on violations reported by states to the EPA Safe Drinking Water Information System. EPA is aware of inaccuracies and underreporting of some data in this system. We are working with the states to improve the quality of the data. An analysis of SDWIS/FED data quality is available at: http://water.epa.gov/scitech/datait/databases/drink/sdwisfed/datareliabilitv.cfm. For more information and additional drinking water data tables, please visit: http://water.epa.gov/scitech/datait/databases/drink/index.cfm. 4 ------- Acronyms and Abbreviations This section defines the acronyms and abbreviations used in this report. Term Definition CWS Community Water System: A public water system that supplies water to the same population year-round. GPRA Refers to the Government Performance and Results Act of 1993, which requires agencies to set performance goals for their programs and measure and report on the progress in reaching those goals. GU Ground water under the direct influence of surface water. GUP Purchased ground water under the direct influence of surface water. GW Ground water. GWP Purchased ground water. FY The Federal government fiscal year which begins on October 1 and ends on September 31. MCL Maximum Contaminant Level - a concentration level that a contaminant may not exceed in drinking water without causing a violation. MRDL Maximum Residual Disinfectant Level - a concentration level that a disinfectant compound cannot exceed without causing a violation. M/R Monitoring/Reporting - a type of violation that occurs when a water system fails to monitor for or report to the state the level of a contaminant as required under the Safe Drinking Water Act. NTNCWS Non-Transient Non-Community Water System: A public water system that regularly supplies water to at least 25 of the same people at least six months per year, but not year-round. Some examples are schools, factories, office buildings, and hospitals, which have their own water systems. Other Other violations of EPA drinking water rules such as the failure to provide public notice of another violation and failure to prepare and/or distribute a Consumer Confidence Report. Pop Served Retail Population Served - the estimated number of individuals served by the water system or the aggregated estimated number of individuals served by a group of water systems. PWS Public Water System - a water system that regularly serves at least 25 individuals or has at least 15 service connections for at least 60 days per year making it subject to the National Primary Drinking Water Rules. PWSS Public Water System Supervision Program - a national program managed by the EPA working in partnership with the states, tribes, water systems and their operators for ensuring that the American public receives water safe to drink. SDWIS/Fed Safe Drinking Water Information System/Federal - an information system that collects drinking water system inventory and compliance data submitted by the states and tribes that is used for analysis and reporting. SW Surface water. SWP Purchased surface water. TNCWS Transient Non-Community Water System: A public water system that provides water in a place such as a gas station or campground where people do not remain for long periods of time and is open at least 60 days per year. 5 ------- Term Definition TT Treatment Technique - a treatment required by the EPA or a state to remove one or more contaminants from water before it is safe to drink. UIC Underground Injection Control. USDW Underground Sources of Drinking Water. State, Territory and Tribe Abbreviations Definition AK Alaska AL Alabama AR Arkansas AS American Samoa AZ Arizona CA California CO Colorado CT Connecticut DC District of Columbia DE Delaware FL Florida GA Georgia GU Guam HI Hawaii IA Iowa ID Idaho IL Illinois IN Indiana KS Kansas KY Kentucky LA Louisiana MA Massachusetts MD Maryland ME Maine Ml Michigan MN Minnesota MO Missouri MP Northern Mariana Islands including Saipan MS Mississippi MT Montana NC North Carolina ND North Dakota NE Nebraska NH New Hampshire NJ New Jersey NM New Mexico 6 ------- State, Territory and Tribe Abbreviations Definition NN Navajo Nation NV Nevada NY New York OH Ohio OK Oklahoma OR Oregon PA Pennsylvania PR Puerto Rico Rl Rhode Island SC South Carolina SD South Dakota TN Tennessee TX Texas UT Utah VA Virginia VI Virgin Islands VT Vermont WA Washington Wl Wisconsin WV West Virginia WY Wyoming 7 ------- Public Water System Data Summaries National The data in the following tables are based on information on current, active water systems submitted by the states and maintained in the SDWIS/Fed data tables from October 2011. System Size by Population Served The following table categorizes the three types of water systems by the size of its reported retail population served and shows the distribution of systems by these categories. For each size category (very small, small, medium, large and very large) the table shows the: • Number of systems (# Systems) • Aggregate population served (Pop. Served) • Proportion of the total number of public water systems (% of Systems) • Proportion of the total population served by all water systems (% of Pop.) Very Small 500 or less Water System Population Size Category Small Medium Large 501-3,300 3,301-10,000 10,001-100,000 Very Large >100,000 Totals # Systems 28,3462 13,737 4,936 3,802 419 51,356 cws Pop. Served 4,763,672 19,661,787 28,737,564 108,770,014 137,283,104 299,216,141 % of Systems 55% 27% 10% 7% 1% 100% % Of Pop. 2% 7% 10% 36% 46% 100% § u # Systems 15,461 2,566 132 18 1 18,178 Pop. Served 2,164,594 2,674,694 705,320 441,827 203,000 6,189,435 z i- z % of Systems 85% 14% 1% 0% 0% 100% % Of Pop. 35% 43% 11% 7% 3% 100% # Systems 80,347 2,726 92 13 1 83,179 to Pop. Served 7,171,054 2,630,931 514,925 334,715 2,000,000 12,651,625 u z 1- % of Systems 97% 3% 0% 0% 0% 100% % Of Pop. 57% 21% 4% 3% 16% 100% Total #of Systems 124,270 19,029 5,160 3,833 421 152,713 8 ------- Water Source This section presents the number of systems and population served by source of water. The definitions used for ground water and surface water source in this table are: • Ground Water - Water systems using ground water (GW) and purchased ground water (GWP) sources • Surface Water - Water systems using surface water (SW), purchased surface water (SWP), ground water under the direct influence of surface water (GU) and purchased ground water under the direct influence of surface water (GUP) sources • Unknown - Water systems did not report the type of water source Data in the following table are based on SDWIS/Fed data tables from October 2011. Ground Water Surface Water Unknown Totals Number of Systems 39,624 11,721 11 51,356 to > Population Served 86,585,984 212,573,760 7,914 299,216,141 > u % of Systems 77% 23% 0% 100% % of Population Served 29% 71% 0% 100% Number of Systems 17,405 755 18 18,178 § u Population Served 5,290,180 895,791 3,464 6,189,435 z 1- z % of Systems 96% 4% 0% 100% % of Population Served 85% 14% 0% 100% Number of Systems 81,024 2,100 55 83,179 to Population Served 10,085,536 2,561,774 4,315 12,651,625 u z 1- % of Systems 97% 3% 0% 100% % of Population Served 80% 20% 0% 100% Total # of Systems 138,053 14,576 84 152,713 9 ------- States The table below shows the number of active, current CWS, NTNCWS, TNCWS and aggregate total water systems for each state. Also shown is the total number of systems per state with ground water and surface water as their source and the number and percent of CWS systems per state that experienced at least one health-based violation during the reporting period. Data are for active water systems, from the SDWIS/Fed third quarter FY2011 inventory tables. Water System Type CWS NTNCWS TNCWS Total AK Systems 437 256 864 1,557 Population 609,959 61,838 106,123 777,920 AL Systems 529 23 59 611 Population 5,516,594 14,734 6,332 5,553,660 AR Systems 710 35 362 1,107 Population 2,709,389 9,072 20,483 2,738,944 AZ Systems 780 204 586 1,570 Population 6,225,100 121,495 117,028 6,463,623 CA Systems 3,055 1,513 3,196 7,764 Population 40,960,545 389,720 855,324 42,205,589 CO Systems 877 178 998 2,053 Population 5,386,406 76,286 247,953 5,710,645 CT Systems 545 586 1,459 2,590 Population 2,703,626 114,185 59,662 2,837,473 DC Systems 5 1 0 6 Population 606,730 370 607,100 DE Systems 216 82 195 493 Population 899,801 22,324 53,982 976,107 Source of Water Ground Surface Unknown Total 1,292 264 1 1,557 356,482 420,850 588 777,920 370 241 0 611 1,551,946 3,985,714 0 5,553,660 681 426 0 1,107 903,736 1,835,208 0 2,738,944 1,502 68 0 1,570 2,817,951 3,645,672 0 6,463,623 6,413 1,307 44 7,764 7,113,070 35,087,714 4,805 42,205,589 1,509 544 0 2,053 713,710 4,996,935 0 5,710,645 2,508 78 4 2,590 429,541 2,441,492 6,440 2,837,473 0 6 0 6 0 607,100 0 607,100 486 7 0 493 489,327 486,780 0 976,107 CWS's with Reported Health-Based Violations Systems Percent 84 5% 43,083 6% 22 4% 112,911 2% 101 9% 298,226 11% 95 6% 182,815 3% 312 4% 1,142,978 3% 74 4% 381,948 7% 69 3% 35,624 1% 0 0% 0 0% 18 4% 221,726 23% 10 ------- Water System Type CWS NTNCWS TNCWS Total FL Systems Population 1,735 883 2,989 5,607 19,221,968 241,415 257,744 19,721,127 GA Systems Population 1,776 192 462 2,430 8,432,935 64,432 75,888 8,573,255 HI Systems Population 111 17 2 130 1,472,544 11,425 375 1,484,344 IA Systems Population 1,127 135 655 1,917 2,742,242 48,095 76,655 2,866,992 ID Systems Population 745 225 986 1,956 1,100,437 52,366 99,611 1,252,414 IL Systems Population 1,751 419 3,426 5,596 12,128,970 135,391 344,924 12,609,285 IN Systems Population 813 573 2,822 4,208 4,870,296 195,358 383,646 5,449,300 KS Systems Population 887 45 90 1,022 2,676,572 21,296 4,266 2,702,134 KY Systems Population 402 21 39 462 4,441,302 11,025 4,895 4,457,222 LA Systems Population 1,049 144 210 1,403 4,921,528 56,471 47,876 5,025,875 MA Systems Population 538 273 999 1,810 9,320,228 74,560 170,687 9,565,475 Source of Water Ground Surface Unknown Total 5,533 74 0 5,607 15,774,819 3,946,308 0 19,721,127 2,194 236 0 2,430 1,816,835 6,756,420 0 8,573,255 118 12 0 130 1,319,270 165,074 0 1,484,344 1,766 151 0 1,917 1,549,191 1,317,801 0 2,866,992 1,872 84 0 1,956 987,898 264,516 0 1,252,414 4,838 758 0 5,596 3,623,164 8,986,121 0 12,609,285 4,090 118 0 4,208 2,966,457 2,482,843 0 5,449,300 650 372 0 1,022 762,026 1,940,108 0 2,702,134 141 321 0 462 395,869 4,061,353 0 4,457,222 1,307 96 0 1,403 2,990,524 2,035,351 0 5,025,875 1,577 227 6 1,810 1,849,024 7,716,266 185 9,565,475 CWS's with Reported Health-Based Violations Systems Percent 117 2% 691,902 4% 69 3% 229,087 1% 3 2% 7,927 1% 60 3% 178,689 6% 129 7% 137,279 11% 78 1% 409,426 3% 58 1% 173,345 3% 109 11% 280,898 10% 55 12% 509,432 11% 74 5% 436,031 9% 95 5% 896,940 9% 11 ------- Water System Type CWS NTNCWS TNCWS Total MD Systems Population 476 562 2,466 3,504 5,194,297 161,140 267,388 5,622,825 ME Systems Population 378 346 1,149 1,873 664,022 66,076 183,241 913,339 Ml Systems Population 1,397 1,374 8,475 11,246 7,615,948 326,679 1,014,416 8,957,043 MN Systems Population 961 502 5,655 7,118 4,262,862 76,460 535,380 4,874,702 MO Systems Population 1,475 224 1,084 2,783 5,171,609 71,769 115,984 5,359,362 MS Systems Population 1,107 82 74 1,263 3,152,385 74,531 11,551 3,238,467 MT Systems Population 698 262 1,143 2,103 713,698 81,987 172,974 968,659 NC Systems Population 2,081 405 3,606 6,092 7,622,946 113,479 315,869 8,052,294 ND Systems Population 332 28 182 542 581,311 4,153 19,936 605,400 NE Systems Population 589 160 574 1,323 1,479,705 49,711 52,220 1,581,636 NH Systems Population 705 435 1,287 2,427 855,402 92,312 220,800 1,168,514 Source of Water Ground Surface Unknown Total 3,400 101 2 3,504 1,046,753 4,574,371 1,701 5,622,825 1,798 75 0 1,873 464,427 448,912 0 913,339 10,937 309 0 11,246 3,014,780 5,942,263 0 8,957,043 6,998 120 0 7,118 3,460,120 1,414,582 0 4,874,702 2,549 234 0 2,783 2,045,596 3,313,766 0 5,359,362 1,248 13 2 1,263 2,989,901 247,851 715 3,238,467 1,881 222 0 2,103 559,822 408,837 0 968,659 5,648 444 0 6,092 1,968,393 6,083,901 0 8,052,294 411 131 0 542 276,106 329,294 0 605,400 1,247 76 0 1,323 751,818 829,818 0 1,581,636 2,368 59 0 2,427 638,786 529,728 0 1,168,514 CWS's with Reported Health-Based Violations Systems Percent 32 1% 69,099 1% 46 2% 76,254 8% 79 1% 256,492 3% 51 1% 162,314 3% 187 7% 347,553 6% 55 4% 249,304 8% 83 4% 66,503 7% 195 3% 324,873 4% 14 3% 16,528 3% 144 11% 160,528 10% 107 4% 93,070 8% 12 ------- Water System Type CWS NTNCWS TNCWS Total NJ Systems Population 612 776 2,503 3,891 8,998,715 352,412 428,677 9,779,804 NM Systems Population 600 152 440 1,192 1,810,927 50,807 75,950 1,937,684 NV Systems Population 211 109 241 561 2,557,680 42,140 21,592 2,621,412 NY Systems Population 2,466 748 5,774 8,988 17,828,851 308,553 2,826,924 20,964,328 OH Systems Population 1,240 731 2,913 4,884 10,411,689 213,288 404,088 11,029,065 OK Systems Population 1,105 105 459 1,669 3,567,235 20,664 36,751 3,624,650 OR Systems Population 875 334 1,396 2,605 3,374,323 70,222 200,723 3,645,650 PA Systems Population 2,061 1,215 5,949 9,225 10,744,868 492,105 756,148 11,993,121 Rl Systems Population 89 79 317 485 989,055 29,787 55,550 1,074,392 SC Systems Population 600 121 721 1,442 3,822,295 44,046 41,395 3,907,736 SD Systems Population 456 24 164 644 719,433 8,468 23,103 751,004 Source of Water Ground Surface Unknown Total 3,748 143 0 3,891 3,422,805 6,356,999 0 9,779,804 1,126 66 0 1,192 1,049,799 887,885 0 1,937,684 524 37 0 561 294,822 2,326,590 0 2,621,412 7,865 1,112 11 8,988 4,925,090 16,038,874 364 20,964,328 4,563 321 0 4,884 3,386,152 7,642,913 0 11,029,065 906 763 0 1,669 683,197 2,941,453 0 3,624,650 2,299 305 1 2,605 800,545 2,844,648 75 3,645,650 8,628 591 6 9,225 2,530,047 9,462,887 187 11,993,121 456 29 0 485 224,892 849,500 0 1,074,392 1,099 343 0 1,442 595,713 3,312,023 0 3,907,736 500 144 0 644 316,491 434,513 0 751,004 CWS's with Reported Health-Based Violations Systems Percent 67 2% 1,459,099 15% 113 9% 156,487 8% 43 8% 66,693 3% 217 2% 953,787 5% 73 1% 326,423 3% 161 10% 765,011 21% 147 6% 182,433 5% 145 2% 2,264,708 19% 13 3% 74,608 7% 28 2% 47,687 1% 82 13% 45,639 6% 13 ------- Water System Type CWS NTNCWS TNCWS Total TN Systems Population 485 46 360 891 6,329,778 25,802 56,982 6,412,562 TX Systems Population 4,721 898 1,345 6,964 25,062,602 509,897 275,817 25,848,316 UT Systems Population 465 67 481 1,013 2,728,314 28,050 78,508 2,834,872 VA Systems Population 1,169 544 1,074 2,787 6,607,284 314,872 167,892 7,090,048 VT Systems Population 439 242 682 1,363 446,339 44,173 97,799 588,311 WA Systems Population 2,291 349 1,707 4,347 6,418,929 156,358 402,820 6,983,048 Wl Systems Population 1,070 856 9,539 11,465 4,015,261 208,017 719,637 4,942,915 WV Systems Population 492 121 429 1,042 1,509,947 39,502 31,183 1,580,632 WY Systems Population 313 90 392 795 449,992 22,662 74,623 547,277 Total Systems Total Population 50,047 17,792 82,980 150,819 292,659,815 5,821,980 12,619,375 311,101,170 Source of Water Ground Surface Unknown Total 524 353 0 891 1,471,473 4,941,089 0 6,412,562 5,560 1,399 5 6,964 6,051,176 19,796,769 371 25,848,316 870 143 0 1,013 821,207 2,013,665 0 2,834,872 2,395 392 0 2,787 751,035 6,339,013 0 7,090,048 1,247 116 0 1,363 315,300 273,011 0 588,311 4,073 272 2 4,347 3,194,928 3,787,818 262 6,983,048 11,409 56 0 11,465 3,086,928 1,855,987 0 4,942,915 710 332 0 1,042 303,110 1,277,522 0 1,580,632 653 142 0 795 198,125 349,152 0 547,277 136,487 14,248 84 150,819 100,050,217 211,035,260 15,693 311,101,170 CWS's with Reported Health-Based Violations Systems Percent 6 1% 44,195 1% 386 6% 2,090,770 8% 43 4% 148,091 5% 116 4% 196,866 3% 69 5% 69,198 12% 39 1% 13,812 0% 84 1% 259,586 5% 24 2% 63,240 4% 25 3% 15,896 3% 4,496 3% 17,436,620 6% 14 ------- Tribes by EPA Regions Except for the Navajo Nation (NN), EPA Regions have direct implementation responsibility for tribal water systems. (Please note that there are no tribal water systems located within EPA Region 3.) Data are for active water systems, from the SDWIS/Fed third quarter FY2011 inventory table. EPA Region Water System Type CWS NTNCWS TNCWS Total Source of Water Ground Surface Total 01 Systems Population 3 2 16 90,594 60 40 90,694 5 16 49,031 41,663 90,694 02 Systems Population 7 10 8 11,071 175 0 11,246 6 2 8 1,897 9,349 11,246 04 Systems Population 14 3 15 32 25,532 1,307 1,601 28,440 31 1 32 18,746 9,694 28,440 05 Systems Population 76 24 7 107 113,759 30,514 456 144,729 103 4 107 134,706 10,023 144,729 06 Systems Population 53 21 12 86 77,740 80,175 3,027 160,942 76 10 86 141,738 19,204 160,942 07 Systems Population 9 2 3 14 5,394 1,315 80 6,789 13 1 14 6,089 700 6,789 08 Systems Population 106 13 9 128 93,763 4,966 566 99,295 100 28 128 71,047 28,248 99,295 09 Systems Population 231 63 30 324 296,929 94,857 6,556 398,342 296 28 324 328,669 69,673 398,342 10 Systems Population 83 24 14 121 51,675 49,389 5,566 106,630 106 15 121 67,819 38,811 106,630 CWS'swith Reported Health-Based Violations Systems Percent 0 0% 0 0% 2 25% 5,542 49% 0 0% 0 0% 4 4% 668 0% 13 15% 12,259 8% 1 7% 700 10% 12 9% 13,091 13% 49 15% 74,782 19% 8 7% 6,989 7% 15 ------- EPA Region Water System Type CWS NTNCWS TNCWS Total Source of Water Ground Surface Total CWS'swith Reported Health-Based Violations Systems Percent NN Systems Population 142 16 5 163 148,580 5,196 909 154,685 156 7 163 135,772 18,913 154,685 53 33% 61,153 40% Total Systems Total Population 724 169 96 989 915,037 267,954 18,801 1,201,792 892 97 989 955,514 246,278 1,201,792 142 14% 175,184 15% Commonwealths and Territories This table presents water system data for U.S. Commonwealths and Territories, quarter FY2011 inventory table. Data are for active water systems, from the SDWIS/Fed third Water System Type CWS NTNCWS TNCWS Total Source of Water Ground Surface Total AS Systems Population 19 0 0 19 60,958 0 0 60,958 10 9 19 4,434 56,524 60,958 GU Systems Population 5 4 0 9 194,286 2,090 0 196,376 6 3 9 155,840 40,536 196,376 MP Systems Population 42 24 10 76 81,193 6,074 1,452 88,719 72 4 76 21,138 67,581 88,719 PR Systems Population 439 48 8 495 5,219,280 44,637 2,794 5,266,711 284 211 495 757,065 4,509,646 5,266,711 VI Systems Population 80 141 85 306 85,572 46,700 9,203 141,475 302 4 306 65,975 75,500 141,475 Total Systems Total Population 585 217 103 905 5,641,289 99,501 13,449 5,754,239 674 231 905 1,004,452 4,749,787 5,754,239 CWS'swith Reported Health-Based Violations Systems Percent 10 53% 57,706 95% 0 0% 0 0% 3 4% 63,105 71% 198 40% 3,111,334 59% 7 2% 1,472 1% 218 3,233,617 24% 56% 16 ------- Percentage of Community Water Systems Meeting Health-based Standards The Government Performance and Results Act (GPRA) of 1993 requires federal executive agencies to develop long-term Strategic Plans defining general goals and objectives for their programs. Under the act, agencies must also develop Annual Performance Plans that describe the goals for their program activities and publish an Annual Performance Report showing actual results compared against the performance goals. Under its Annual Performance Plan, strategic objective 2.1: Protect Public Health, sub-objective 2.1.1: Water Safe to Drink, EPA set a goal of 91 percent of the population served by community water systems will receive drinking water that meets all applicable health-based drinking water standards through approaches that include effective treatment and source water protection. The table below shows the performance results as a national aggregate and broken-out by EPA Region.1 National 1 2 3 4 EPA Region 5 6 7 8 9 10 2011 93.2% 91% 84% 89% 96% 96% 91% 92% 94% 97% 97% 2010 92.2% 91% 83% 97% 94% 93% 91% 82% 93% 96% 92% 2009 92.1% 92% 79% 90% 94% 95% 90% 94% 96% 97% 96% 2008 92.0% 91% 82% 90% 94% 95% 89% 83% 96% 98% 96% 2007 91.5% 92% 76% 95% 93% 93% 92% 93% 97% 95% 92% 2006 89.4% 92% 61% 93% 93% 92% 88% 91% 96% 98% 95% 2005 88.5% 92% 55% 93% 93% 94% 88% 91% 95% 95% 95% 2004 90.0% 93% 80% 85% 93% 96% 92% 91% 92% 86% 93% 2003 89.6% 89% 54% 95% 93% 95% 93% 93% 92% 98% 93% 2002 93.6% 88% 81% 98% 96% 94% 93% 95% 97% 99% 91% 2001 90.8% 65% 77% 98% 95% 92% 96% 90% 94% 97% 83% 2000 90.7% 62% 76% 97% 95% 95% 96% 95% 94% 94% 83% 1999 90.5% 75% 61% 98% 95% 95% 95% 95% 94% 97% 94% 1998 89.0% 64% 60% 97% 95% 95% 95% 94% 93% 95% 89% 1997 86.5% 62% 55% 97% 93% 92% 93% 95% 91% 95% 74% 1996 85.6% 60% 53% 92% 93% 92% 94% 95% 93% 91% 74% 1995 83.8% 57% 52% 91% 92% 92% 88% 95% 90% 88% 75% 1994 83.0% 57% 87% 87% 90% 88% 87% 94% 91% 90% 87% 1993 78.8% 60% 85% 85% 90% 77% 92% 93% 92% 69% 85% CT, ME, MA, NH, Rl, VT NJ, NY, PR, VI DE, DC, MD, PA, VA, WV AL, FL, GA, KY, MS, NC, SC, TN IL, IN, Ml, MN, OH, Wl AR, LA, NM, OK TX IA, KS, MO, NE CO, MT, ND, SD, UT, WY AZ, CA, HI, NV, AS, GU, MP, PW AK, ID, OR, WA 1 2005 Baseline: 89 percent of population; note that year-to-year performance is expected to change over time as new standards take effect.) 17 ------- Notice: These measures are based on violations reported by states to the EPA Safe Drinking Water Information System/Fed (SDWIS/Fed). EPA is aware of inaccuracies and underreporting of some data to this system and is working with the states to improve the quality of the data. Community Water Systems (CWS) Violations This section presents three tables showing reported violations experienced by CWS broken out by the number of violations, number of systems in violation and the population in violation (based on the retail population served). Sources for these data are as follows: Fiscal Year SDWIS/Fed Data Source 2011 FY2011 Quarter 3 2010 FY2010 Quarter 3 2009 FY2009 Quarter 3 2008 FY2008 Quarter 3 2007 FY2007 Quarter 3 2006 FY2006 Quarter 3 FY2005 Quarter 4, except for Chemical 2005 Monitoring/Reporting violations which are from FY2006 Quarter 1 FY2004 Quarter 4 frozen tables, except for Chemical 2004 Monitoring/Reporting violations which are from FY2005 Quarter 1 FY2003 Quarter 4 frozen tables, except for Chemical 2003 Monitoring/Reporting violations which are from FY2004 Quarter 1 Please note that totals for the number of systems in violation and for population affected should be lower than the sum in each row as some systems will have incurred more than one type of violation. Compliance information since FY2003 includes new Disinfectant Byproducts (DBP) and Interim Enhanced Surface Water Treatment Rule (IESWTR) rules. CWS Violations Reported Nationally by Fiscal Year The following tables show the number of CWS violations by type, number of those systems in violation, and the population affected by fiscal year. Violation Totals by Fiscal Year Violation Type FY MCL MRDL TT M/R Other Total 2011 8,522 4 1,992 76,031 22,618 109,167 2010 9,052 4 2,348 42,677 21,776 75,857 2009 9,971 5 2,392 60,823 20,941 94,132 2008 9,883 5 2,647 103,064 20,774 136,373 2007 9,410 5 3,056 61,316 23,299 97,086 2006 9,076 7 2,790 57,117 19,245 88,235 2005 9,360 4 3,036 109,167 18,414 139,981 2004 5,340 6 2,168 87,393 14,459 109,366 2003 4,688 1 2,299 58,675 12,671 78,334 18 ------- Systems in Violation by Fiscal Year FY MCL MRDL Violation Type TT M/R Other Total* 2011 4,010 4 1,263 17,519 8,416 18,421 2010 4,092 3 1,411 11,118 7,807 18,663 2009 4,451 3 1,401 13,403 8,546 20,684 2008 4,553 5 1,506 13,084 8,631 20,797 2007 4,412 4 1,648 12,619 10,429 21,544 2006 4,371 3 1,538 13,071 9,600 21,618 2005 4,383 4 1,625 14,291 10,258 22,772 2004 3,419 4 1,409 13,551 8,947 21,055 2003 3,042 1 1,458 12,819 8,109 20,280 'opulation Affected by Fiscal Year FY MCL MRDL Violation Type TT M/R Other Total* 2011 14,915,599 54,128 8,105,335 60,653,341 18,305,917 70,959,083 2010 14,064,004 4,388 10,539,506 50,775,665 17,476,368 79,731,863 2009 15,918,279 29,763 10,643,904 50,360,756 20,077,807 78,507,217 2008 15,841,822 1,021 10,086,935 57,538,783 21,872,736 83,385,983 2007 16,105,351 263,875 10,895,825 51,148,667 30,434,294 87,843,223 2006 16,221,483 46.344 16,612,762 52,289,555 23,372,794 83,062,903 2005 18,951,548 424,859 16,879,450 61,767,844 23,442,800 90,890,243 2004 15,018,194 3,617 16,588,301 48,675,006 17,833,120 76,870,272 2003 15,438,443 2,250 16,969,087 49,497,572 12,726,332 80,765,799 "Totals for the number of systems in violation and for the population affected are lower than the sum in each row because some systems have incurred more than one type of violation. 19 ------- CWS Violations Reported Nationally by System Size The next three tables present the same information for FY2011 as in the previous section, only with water systems arranged by the following population size categories: Very Small 500 or less Small 501-3,300 Medium 3,301-10,000 Large 10,001-100,000 Very Large >100,000 Number of Violations Violation Type MCL MRDL TT M/R Other Total Very Small 4,791 1 1,232 50,117 17,795 73,936 Small 2,379 2 450 17,113 3,382 23,326 Medium 856 0 154 5,201 897 7,108 Large 475 1 133 3,443 526 4,578 Very Large 21 0 23 157 18 219 Number of Systems in Violation Violation Type MCL MRDL TT M/R Other Total" Very Small 2,185 1 756 7,307 5,131 11,434 Small 972 2 291 2,840 1,611 4,502 Medium 386 0 92 795 460 1,415 Large 275 1 84 553 303 993 Very Large 13 0 10 51 16 77 Population Affected Violation Type MCL MRDL TT M/R Other Total" 354,602 56 121,990 1,173,293 777,570 1,828,187 1,401,995 3,072 618,893 3,897,674 2,209,961 6,249,402 2,286,476 0 521,222 4,569,055 2,657,065 8,148,439 6,757,968 51,000 2,205,565 15,338,207 8,232,136 26,719,084 Very Small Small Medium Large Very Large 4,080,953 0 4,849,769 21,630,050 3,762,010 28,013,971 *Totals for the number of systems in violation and for the population affected are lower than the sum in each row because some systems have incurred more than one type of violation. 20 ------- NTNCWS Violations Reported by Fiscal Year This section presents three tables showing reported violations experienced by Non-Transient Non-Community Water Systems (NTNCWS) broken out by the number of violations, number of systems in violation, and the population in violation (based on the retail population served). Sources for these data are as follows: Fiscal Year SDWIS/Fed Data Source 2011 FY2011 Quarter 3 2010 FY2010 Quarter 3 2009 FY2009 Quarter 3 2008 FY2008 Quarter 3 2007 FY2007 Quarter 3 2006 FY2006 Quarter 3 FY2005 Quarter 4, except for Chemical 2005 Monitoring/Reporting violations which are from FY2006 Quarter 1 FY2004 Quarter 4 frozen tables, except for Chemical 2004 Monitoring/Reporting violations which are from FY2005 Quarter 1 FY2003 Quarter 4 frozen tables, except for Chemical 2003 Monitoring/Reporting violations which are from FY2004 Quarter 1 Please note that totals for the number of systems in violation and for population affected should be lower than the sum in each row as some systems will have incurred more than one type of violation. Compliance information since FY2003 includes new Disinfectant Byproducts (DBP) and Interim Enhanced Surface Water Treatment Rule (IESWTR) rules. Number of Violations Violation Type FY MCL MRDL TT M/R Other Total 2011 1,906 490 30,366 3,213 35,975 2010 2,167 670 20,940 3,395 27,172 2009 3,882 1 185 14,276 8,516 22,519 2008 2,206 766 39,379 3,449 45,800 2007 2,141 794 28,581 2,490 34,006 2006 1,833 827 27,728 2,063 32,451 2005 1,851 1 853 48,276 717 51,698 2004 1,348 681 34,097 538 36,664 2003 1,383 680 25,588 503 28,154 21 ------- Number of Systems in Violation Violation Type FY MCL MRDL TT M/R Other Total* 2011 1,147 383 6,362 1,224 7,097 2010 1,271 508 4,331 1,208 7,318 2009 3,882 1 185 14,276 8,516 22,519 2008 1,326 536 5,178 1,227 6,870 2007 1,313 539 4,903 1,238 6,618 2006 1,198 539 5,143 1,059 6,590 2005 1,160 1 550 5,578 491 6,778 2004 1,020 474 4,957 356 5,987 2003 1,024 495 4,752 317 5,794 Population Affected FY MCL MRDL Violation Type TT M/R Other Total* 2011 323,658 110,452 2,194,604 338,521 2,284,361 2010 411,318 141,011 1,415,409 343,874 2,311,612 2009 1,289,606 300 37,459 2,434,722 826,580 3,413,437 2008 423,663 181,073 1,630,978 343,836 2,141,033 2007 398,021 188,740 1,526,926 355,150 2,083,785 2006 405,274 170,672 1,670,822 277,538 2,136,600 2005 342,398 110 164,644 1,665,415 122,177 2,035,743 2004 286,638 130,242 1,401,311 88,003 1,711,868 2003 265,927 140,053 1,432,966 85,026 1,746,697 "Totals for the number of systems in violation and for the population affected are lower than the sum in each row because some systems have incurred more than one type of violation. 22 ------- TNCWS Violations Reported by Fiscal Year This section presents three tables showing reported violations experienced by Transient Non- Community Water Systems (TNCWS) broken out by the number of violations, number of systems in violation, and the population in violation (based on the retail population served). Sources for these data are as follows: Fiscal Year SDWIS/Fed Data Source 2011 FY2011 Quarter 3 2010 FY2010 Quarter 3 2009 FY2009 Quarter 3 2008 FY2008 Quarter 3 2007 FY2007 Quarter 3 2006 FY2006 Quarter 3 2005 FY2005 Quarter 4, except for Chemical Monitoring/Reporting violations which are from FY2006 Quarter 1 2004 FY2004 Quarter 4 frozen tables, except for Chemical Monitoring/Reporting violations which are from FY2005 Quarter 1 2003 FY2003 Quarter 4 frozen tables, except for Chemical Monitoring/Reporting violations which are from FY2004 Quarter 1 Number of Violations FY MCL MRDL Violation Type TT M/R Other Total 2011 5,111 0 365 24,189 21,303 50,968 2010 5,335 0 338 23,880 27,894 57,447 2009 4,969 1 259 24,397 26,422 56,048 2008 5,259 0 384 26,589 24,437 56,669 2007 5,575 0 435 28,599 22,078 56,687 2006 5,264 0 474 29,848 19,010 54,596 2005 4,994 0 502 34,880 4,800 45,176 2004 5,003 0 415 34,295 3,028 42,741 2003 5,063 0 573 33,666 8,640 47,942 23 ------- Number of Systems in Violation FY MCL MRDL Violation Type TT M/R Other Total* 2011 3,957 0 267 15,790 7,926 25,071 2010 4,088 0 220 13,843 8,548 26,699 2009 3,882 1 185 14,276 8,516 22,519 2008 4,068 0 227 14,938 8,159 22,714 2007 4,319 0 237 15,626 7,664 22,996 2006 4,066 0 211 15,571 6,417 21,800 2005 3,961 0 215 17,542 2,284 21,236 2004 3,960 0 195 17,314 1,697 20,653 2003 4,055 0 245 17,429 3,685 21,338 Population Affected FY MCL MRDL Violation Type TT M/R Other Total* 2011 555,458 0 31,922 1,518,170 755,442 2,860,992 2010 490,848 0 38,667 1,669,101 813,174 3,011,790 2009 1,289,606 300 37,459 2,434,722 826,580 3,413,437 2008 548,776 0 58,580 1,959,479 859,435 2,900,038 2007 538,931 0 63,160 1,999,117 731,880 2,799,528 2006 1,296,508 0 50,372 2,166,532 642,080 3,596,226 2005 541,171 0 86,648 2,260,178 344,411 2,812,854 2004 549,164 0 51,915 2,205,971 234,291 2,705,723 2003 540,765 0 40,518 2,159,794 340,950 2,647,611 "Totals for the number of systems in violation and for the population affected are lower than the sum in each row because some systems have incurred more than one type of violation. 24 ------- MCL, MRDL and TT Violations Reported All data in these tables are taken from the FY2011 third quarter "frozen" dataset. Microbial Rules Violations Microbial rules apply to all water system types. Total Coliform Rule (TCR) The TCR applies to all types of water systems. Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 7,132 790 285 217 7 8,431 5,399 617 237 186 7 6,435 593,805 807,370 1,418,876 4,276,334 2,740,959 9,837,344 Stage 1 Disinfectant Byproducts (Stage 1 DBP) The Stage 1 DBP rule applies to CWS and NTNCWS that disinfect and to TNCWS that use Chlorine Dioxide (CI02) disinfection. Number of Violations Systems in Violation Population Affected Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total 1,021 1,095 353 129 1 2,599 453 367 139 66 1 1,026 78,524 554,389 805,647 1,606,165 137,201 3,181,926 25 ------- Surface Water Treatment Rule (SWTR) The SWTR applies to all water system types that use surface water as their source. Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 622 127 28 12 5 794 291 79 21 10 3 404 49,048 99,671 112,283 356,043 2,048,000 2,665,045 Interim Enhanced and Long Term-1 Surface Water Treatment Rule (IE<1 SWTR) The IE<1 SWTR applies to all water system types that use surface water as their source. Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 123 89 39 61 18 330 52 43 22 37 6 160 9,932 69,609 120,992 981,181 2,673,469 3,855,183 26 ------- Organics Rules Violations These rules apply to CWS and NTNCWS. Volatile Organic Compounds (VOC) Water System Population Size Category Very Small 25-500 Small Medium 501-3,300 3,301-10,000 Large 10,001-100,000 Very Large >100,000 Total Number of Violations 30 15 0 6 0 51 Systems in Violation 14 7 0 5 0 26 Population Affected 2,327 6,877 0 207,216 0 216,420 Synthetic Organic Compounds Water System Population Size Category Very Small 25-500 Small Medium 501-3,300 3,301-10,000 Large 10,001-100,000 Very Large >100,000 Total Number of Violations 30 13 5 0 0 48 Systems in Violation 15 6 2 0 0 23 Population Affected 2,844 6,489 8,653 0 0 17,986 27 ------- Inorganic Compounds (lOCs) The lOCs rule applies to CWS and NTNCWS. Nitrate and Nitrite Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations 559 145 9 6 1 720 Systems in Violation 246 60 4 3 1 314 Population Affected 37,306 72,777 19,501 56,056 114,840 300,480 Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations 1,486 461 166 66 2 2,181 Systems in Violation 578 144 37 23 1 783 Population Affected 82,961 195,034 229,785 635,554 631,253 1,774,587 28 ------- Other Inorganic Compounds Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations 287 76 47 9 4 423 Systems in Violation 102 29 6 3 1 141 Population Affected 15,660 35,163 37,974 36,439 100,700 225,936 Radionuclides The radionuclides rule applies to CWS. Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 557 232 69 72 6 936 188 78 21 10 2 299 31,635 100,188 116,397 250,155 356,000 854,375 Lead and Copper Rule The lead and copper rule applies to CWS and NTNCWS. Water System Population Size Category Very Small 25-500 Small 501-3,300 Medium 3,301-10,000 Large 10,001-100,000 Very Large >100,000 Total Number of Violations 669 146 30 15 0 860 Systems in Violation 549 124 20 13 0 706 Population Affected 75,957 149,741 104,225 332,542 0 662,465 29 ------- Monitoring Violations Reported All data in these tables are taken from the FY2010 fourth quarter "frozen" dataset. Microbial Rules Violations Microbial rules apply to all water system types. Total Coliform Rule (TCR) The TCR applies to all types of water systems. Very Small 25-500 Small 501-3,300 Water System Population Size Category Medium Large 3,301-10,000 10,001-100,000 Very Large >100,000 Total Number of Violations 23,487 2,117 231 114 14 25,963 Systems in Violation 14,398 1,418 191 104 11 16,122 Population Affected 1,509,201 1,755,514 1,095,327 2,947,297 3,600,019 10,907,358 Disinfectant Byproducts (Stage 1 DBP) ge 1 DBP rule applies to CWS and NTNCWS that disinfect and to TNCWS that use Chlorine Dioxide (CI02) disinfection. Very Small 25-500 Small 501-3,300 Water System Population Size Category Medium Large 3,301-10,000 10,001-100,000 Very Large >100,000 Total Number of Violations 3,386 1,255 312 196 16 5,165 Systems in Violation 1,990 802 205 115 9 3,121 Population Affected 335,839 1,084,694 1,185,559 3,288,044 2,455,289 8,349,425 30 ------- Surface Water Treatment Rule (SWTR) The SWTR applies to all water system types that use surface water as their source. Very Small 25-500 Small 501-3,300 Water System Population Size Category Medium Large 3,301-10,000 10,001-100,000 Very Large >100,000 Total Number of Violations 787 207 72 21 5 1,092 Systems in Violation 269 113 39 19 2 442 Population Affected 45,619 153,318 212,669 490,328 8,120,000 9,021,934 Enhanced and Long Term-1 Surface Water Treatment Rule (IE<1 SWTR) iLTl SWTR applies to all water system types that use surface water as their source. Very Small 25-500 Small 501-3,300 Water System Population Size Category Medium Large 3,301-10,000 10,001-100,000 Very Large >100,000 Total Number of Violations 259 140 53 18 4 474 Systems in Violation 105 67 23 12 3 210 Population Affected 18,371 94,517 128,147 356,567 2,134,220 2,731,822 31 ------- Organics Rules Violations These rules apply to CWS and NTNCWS. Volatile Organic Compounds (VOC) Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 22,882 4,985 1,325 1,161 42 30,395 919 196 49 44 2 1,210 125,437 254,344 274,657 1,140,427 400,812 2,195,677 Synthetic Organic Compounds Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 20,953 9,229 2,443 1,125 6 33,756 894 383 102 66 4 1,449 129,488 475,697 564,393 1,548,902 1,239,927 3,958,407 32 ------- Inorganic Compounds (lOCs) The lOCs rule applies to CWS and NTNCWS. Nitrate and Nitrite Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 1,454 344 106 57 12 1,973 1,106 251 70 39 5 1,471 160,769 326,799 397,185 1,189,255 1,444,002 3,518,010 Arsenic Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 974 224 54 38 3 1,293 813 181 40 26 2 1,062 112,388 203,550 214,920 603,317 365,045 1,499,220 33 ------- Other Inorganic Compounds Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 7,314 1,460 404 287 27 9,492 866 202 51 31 6 1,156 121,956 256,182 261,968 828,247 1,182,793 2,651,146 Radionuclides The radionuclides rule applies to CWS. Water System Population Size Category Very Small Small Medium Large 25-500 501-3,300 3,301-10,000 10,001-100,000 Number of Violations 1,157 302 67 123 Systems in Violation 309 85 18 39 Population Affected 49,147 110,914 102,161 1,076,580 Lead and Copper Rule The lead and copper rule applies to CWS and NTNCWS. Water System Population Size Category Very Small Small Medium Large Very Large 25-500 501-3,300 3,301-10,000 10,001-100,000 >100,000 Total Number of Violations Systems in Violation Population Affected 7,066 1,617 313 220 20 9,236 5,008 1,292 270 181 15 6,766 759,332 1,606,199 1,520,155 4,941,002 3,344,965 12,171,653 Very Large >100,000 Total 3 1,652 2 453 1,537,460 2,876,262 34 ------- Underground Injection Control (UIC) Program - Inventory of Wells Class I through IV data from annual reporting by states and EPA Regions. The Class V estimate is based on state estimates and modeling of storm water and large capacity septic. Well type definitions are: Class I Deep industrial waste disposal Class II Oil and natural gas production Class III Related to minerals recovery Class IV Banned - inject hazardous waste and/or radioactive waste above Underground Sources of Drinking Waters (USDWs) Class V Generally shallow wells; there are approximately 650,000 Class V wells in the country Well Inventory The table below presents the UIC well inventory for FY2011. EPA Region State Class 1 Hazardous Waste Wells Class 1 Non- Hazardous Waste Wells Class II Wells Class III Facilities Class III Wells Class IV Facilities Class V Wells CT 0 0 0 0 0 0 710 MA 0 0 0 0 0 0 5,413 1 ME 0 0 0 0 0 0 1,927 NH 0 0 0 0 0 0 7,623 Rl 0 0 0 0 0 0 1,470 VT 0 0 0 0 0 0 1,823 NJ 0 0 0 0 0 0 968 2 NY 0 1 532 6 174 0 30,843 PR 0 0 0 0 0 0 3,341 VI 0 0 0 0 0 0 71 DC 0 0 0 0 0 0 125 DE 0 0 0 0 0 0 1,563 3 MD 0 0 0 0 0 0 13,701 PA 0 0 1,861 0 0 0 14,353 VA 0 0 11 1 6 0 12,320 WV 0 0 779 2 21 0 4,015 AL 0 0 240 1 3 0 386 FL 1 211 58 0 0 0 55,072 GA 0 0 0 0 0 0 10,459 4 KY 0 2 3,403 0 0 0 14,175 MS 4 1 1,110 0 0 0 7,546 NC 0 0 0 0 0 3 26,658 SC 0 0 0 0 0 0 10,739 TN 0 0 18 0 0 0 1,735 35 ------- EPA Region State Class 1 Hazardous Waste Wells Class 1 Non- Hazardous Waste Wells Class II Wells Class III Facilities Class III Wells Class IV Facilities Class V Wells 5 IL 3 2 7,843 0 0 0 16,644 IN 4 24 2,030 0 0 0 8,729 Ml 9 21 1,460 5 46 0 8,934 MN 0 0 0 0 0 0 2,744 OH 10 0 2,455 4 54 0 22,461 Wl 0 0 0 0 0 0 1,662 6 AR 4 9 1,093 0 0 0 281 LA 15 22 3,731 17 89 0 213 NM 0 5 4,585 9 10 0 1,414 OK 0 6 10,629 1 2 2 1,928 TX 58 50 52,016 79 6,075 4 32,594 7 IA 0 0 7 0 0 0 1,380 KS 5 48 16,658 4 145 0 6,067 MO 0 0 282 0 0 0 3,851 NE 0 3 661 1 3,913 0 675 8 CO 0 13 874 3 34 0 1,759 MT 0 0 1,062 0 0 0 903 ND 0 4 1,023 0 1 0 571 SD 0 0 87 0 0 0 271 UT 0 0 428 2 16 8 5,346 WY 0 41 4,978 3 10,552 0 1,961 9 AS 0 0 0 0 0 0 0 AZ 0 0 0 2 15 0 49,035 CA 0 45 29,505 1 212 0 18,047 GU 0 0 0 0 0 0 460 HI 0 0 0 0 0 0 5,547 MP 0 0 0 0 0 0 37 NV 0 0 18 0 0 0 961 10 AK 0 29 1,347 0 0 0 1,792 ID 0 0 0 0 0 0 16,235 OR 0 0 9 0 0 4 37,015 WA 0 0 1 0 0 0 34,649 Totals 113 537 150,855 141 21,368 21 511,202 36 ------- Tribal UIC Well Inventory by EPA Region The table below shows the total number of tribal wells by well type for each EPA Region. Note that there are no tribes located in EPA Region 3. EPA Region Class 1 Wells Class II Wells Class III Wells Class IV/V Wells 1 0 0 0 10 2 0 0 0 0 4 0 0 0 70 5 0 13 0 668 6 1 2,448 0 8 7 0 0 0 17 8 1 1,070 0 73 9 0 379 0 408 10 0 0 0 971 Totals 2 3,910 0 2,225 37 ------- |