United States Environmental Protection Agency FACTOIDS: Drinking Water and Ground Water Statistics for 2006 ------- Office of Water (4606M) EPA816-K-06-012 March 2008 www. epa. gov/safewater/data ------- There are approximately 157,000 public drinking water systems in the United States. Each of these systems regularly supplies drinking water to at least 25 people or 15 service connections. Beyond their common purpose, the 157,000 systems vary widely. The following tables group water systems into categories that show their similarities and differences. For example, the first table shows that most people in the US (282 milion) get their water from a community water system. There are approximately 52,000 community water systems, but just eight percent of those systems (4,048) serve 81 percent of the people. The second table shows that more water systems have ground water than surface water as a source-but more people drink from a surface water system. Other tables break down these national numbers by state, territory, and EPA region. This package also contains figures on the types and locations of underground injection control 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 separate reporting from the states to EPA. 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 official record of public drinking water systems, their violations of state and EPA regulations, and enforcement actions taken by EPA or states as a result of those violations. EPA maintains the database using information collected and submitted by the states. 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 atwww.epa.gov/safewater/data/reports.html For more information and additional drinking water data tables, please visit http://www.epa.gov/safewater/data/getdata.html. Acronyms & Abbeviations: CWS: Community Water System FY: (federal) Fiscal Year [October 1-September 30] GPRA: Government Performance and Results Act-program measures M/R: Monitoring/Reporting violation [water system's failure to monitor for, or report to the state, the level of a contaminant on the required schedule] MCL: Maximum Contaminant Level [the legal limit on a contaminant in drinking water MRDL: Maximum Residual Disinfectant Level [for disinfectants added to drinking water] NTNCWS: Non-Transient Non-Community Water System Other: Other violations of EPA rules (including failure to provide public notice of another violation, or failure to prepare and/or distribute a Consumer Confidence Report) Pop. Served: Population served (by a water system) PWS: Public Water System PWSS: Public Water System Supervision program SDWIS/FED: Safe Drinking Water System/Federal version TNCWS: Transient Non-Community Water System TT: Treatment Technique [a drinking water treatment required by EPA or state rules^ ------- FY2006 Drinking Water Factoids Public Water System Inventory data Active, current systems, from Safe Drinking Water Information System/Federal version (SDWIS/FED) 06Q3 frozen inventory table System size by population served Very Small 500 or less Small 501-3,300 Medium 3,301-10,000 Large 10,001-100,000 Very Large >100,000 Total cws NTNCWS TNCWS # systems Pop. served % of systems % of pop # systems Pop. served % of systems % of pop # systems Pop. served % of systems % of pop 29,448 14,098 4,745 3,659 389 4,895,672 20,017,471 27,473,308 103,300,712 126,012,965 56% 27% 9% 7% 1% 2% 7% 10% 37% 45% 16,259 2,659 108 19 2,260,664 2,668,373 585,699 493,570 85% 14% 1% 0% 0% 38% 44% 10% 8% 0% 82,387 2,745 107 17 4 7,260,684 2,691,455 580,359 454,222 2,994,000 97% 3% 0% 0% 0% 52% 19% 4% 3% 21% 52,339 281,700,128 100% 100% 19,045 6,008,306 100% 100% 85,260 13,980,720 100% 100% Total # syster 128,094 19,502 4,960 3,695 393 156,644 CWS = Community Water System: A public water system that supplies water to the same population year-round. 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. 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. Water source Type Ground Water Surface Water Totals CWS NTNCWS TNCWS # systems Pop. served % of systems % of pop # systems Pop. served % of systems % of pop # systems Pop. served % of systems % of pop 40,315 12,024 85,034,929 196,665,199 77% 23% 30% 70% 18,429 616 5,406,675 601,631 97% 3% 90% 10% 83,356 1,904 11,281,394 2,699,326 98% 2% 81% 19% 52,339 281,700,128 100% 100% 19,045 6,008,306 100% 100% 85,260 13,980,720 100% 100% Total # syster 142,100 14,544 156,644 Ground water systems = ground water (GW), purchased ground water (GWP) Surface water systems = surface water (SW), purchased surface water (SWP), ground water under the direct influence of surface water (GU), purchased ground water under the direct influence of surface water (GUP). SDWIS/FED 06Q3 tables were "frozen" in early October 2006 ------- FY2006 water system data-by State Key: Active, current systems, from SDWIS/FED 06Q3 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 06Q3 frozen violations table # systems Pop served AK AL AR AZ CA CO CT DC DE FL GA HI IA ID IL IN KS KY LA MA MD ME Ml MN MO MS CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations 453 229 864 471,252 52,477 100,658 544 29 63 5,345,087 19,198 7,046 714 34 342 2,559,094 8,699 22,451 804 205 593 5,400,027 126,116 117,997 3,040 1 ,385 2,895 36,220,152 389,439 1,735,505 842 164 946 5,039,343 87,218 272,207 577 615 1,544 2,669,471 119,713 57,603 3 2 606,000 3,570 216 105 195 861,114 28,882 58,879 1 ,853 952 3,223 17,866,926 252,291 284,854 1,712 223 523 7,417,286 66,725 82,324 114 14 2 1,323,144 11,185 375 1,140 139 711 2,641,647 47,533 86,197 750 234 1,017 1,011,501 51,216 110,891 1 ,775 426 3,667 11,706,050 137,309 381,709 837 677 2,892 4,672,755 199,833 397,909 904 49 99 2,564,773 19,481 4,154 41 1 37 62 4,756,419 14,678 7,729 1,085 164 269 4,924,464 70,197 62,010 524 256 951 8,956,761 70,817 184,723 501 574 2,564 4,871,478 167,796 185,294 387 373 1,195 616,287 70,940 191,800 1 ,444 1 ,537 8,743 7,509,641 360,880 1 ,025,428 964 543 5,885 4,130,759 88,570 530,935 1 ,472 242 1 ,026 5,052,913 76,630 121,651 1,152 85 102 3,083,940 74,732 21 ,527 1,546 624,387 636 5,371 ,331 1,090 2,590,244 1,602 5,644,140 7,320 38,345,096 1,952 5,398,768 2,736 2,846,787 5 609,570 516 948,875 6,028 18,404,071 2,458 7,566,335 130 1 ,334,704 1,990 2,775,377 2,001 1,173,608 5,868 12,225,068 4,406 5,270,497 1,052 2,588,408 510 4,778,826 1,518 5,056,671 1,731 9,212,301 3,639 5,224,568 1,955 879,027 1 1 ,724 8,895,949 7,392 4,750,264 2,740 5,251,194 1,339 3,180,199 1 ,288 258 318,286 306,101 357 279 1,258,086 4,113,245 689 401 923,297 1 ,666,947 1 ,545 57 2,721 ,908 2,922,232 6,075 1 ,245 7,448,590 30,896,506 1 ,470 482 679,379 4,719,389 2,648 88 406,244 2,440,543 5 609,570 511 5 466,591 482,284 5,944 84 15,122,366 3,281,705 2,205 253 1 ,557,289 6,009,046 109 21 472,141 862,563 1,828 162 1 ,502,940 1 ,272,437 1 ,925 76 916,425 257,183 5,143 725 3,382,929 8,842,139 4,278 128 2,898,112 2,372,385 677 375 705,079 1 ,883,329 165 345 392,494 4,386,332 1 ,422 96 2,992,726 2,063,945 1,510 221 1 ,922,729 7,289,572 3,542 97 925,504 4,299,064 1 ,867 88 460,959 418,068 11,413 311 3,124,003 5,771,946 7,277 115 3,408,897 1 ,341 ,367 2,484 256 1 ,805,324 3,445,870 1,327 12 2,834,757 345,442 97 58,705 17 87,219 109 250,487 70 242,912 253 367,367 61 104,559 80 115,478 1 595,000 20 162,914 181 808,862 100 383,761 10 92,622 68 214,499 118 123,004 187 879,757 85 129,284 122 345,805 51 437,180 160 747,802 48 584,726 36 63,627 93 93,436 156 138,773 42 226,986 193 308,480 38 108,942 21% 12% 3% 2% 15% 10% 9% 4% 8% 1% 7% 2% 14% 4% 33% 98% 9% 19% 10% 5% 6% 5% 9% 7% 6% 8% 16% 12% 11% 8% 10% 3% 13% 13% 12% 9% 15% 15% 9% 7% 7% 1% 24% 15% 11% 2% 4% 5% 13% 6% 3% 4% ------- FY2006 water system data-by State Active, current systems, from SDWIS/FED 06Q3 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 06Q3 frozen violations table Key: # systems Pop served MT NC ND NE NH NJ NM NV NY OH OK OR PA Rl SC SD TN TX UT VA VT WA Wl WV WY CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations 678 222 1,176 682,686 61,048 178,240 2,155 528 4,057 6,778,136 145,932 348,483 326 24 162 555,089 3,757 14,563 598 185 565 1,415,489 53,661 61,515 710 448 1,223 828,142 94,654 317,466 583 834 2,485 8,543,186 290,716 422,025 644 160 479 1,612,351 44,192 95,326 233 106 249 2,415,324 40,642 25,105 2,779 759 6,224 17,858,056 329,652 2,883,683 1,302 930 3,152 10,126,083 217,450 461,279 1,135 110 358 3,530,467 20,709 27,335 874 339 1 ,428 3,015,150 73,710 224,877 2,106 1,171 6,352 10,598,998 491,461 824,595 84 77 323 978,901 26,704 55,281 640 156 616 3,438,750 60,052 36,007 462 27 183 661,532 11,940 25,555 690 43 389 5,632,861 31 ,206 58,648 4,472 787 1,212 23,373,519 309,927 251,173 448 64 430 2,402,359 27,448 69,633 1,250 586 1,218 6,349,446 322,708 195,556 451 236 684 449,212 41,678 103,591 2,257 328 1 ,532 5,722,310 135,873 410,788 1 ,081 1 ,044 9,285 3,920,038 196,578 689,634 516 150 510 1,438,527 43,690 34,200 281 85 393 452,042 18,340 80,340 2,076 921 ,974 6,740 7,272,551 512 573,409 1,348 1 ,530,665 2,381 1 ,240,262 3,902 9,255,927 1,283 1 ,751 ,869 588 2,481 ,071 9,762 21 ,071 ,391 5,384 10,804,812 1,603 3,578,511 2,641 3,313,737 9,629 11,915,054 484 1 ,060,886 1,412 3,534,809 672 699,027 1,122 5,722,715 6,471 23,934,619 942 2,499,440 3,054 6,867,710 1,371 594,481 4,117 6,268,971 11,410 4,806,250 1,176 1,516,417 759 550,722 1 ,848 228 518,462 403,512 6,288 452 1,899,378 5,373,173 412 100 218,583 354,826 1 ,291 57 740,599 790,066 2,313 68 690,495 549,767 3,794 108 3,653,616 5,602,311 1 ,209 74 1 ,491 ,428 260,441 552 36 306,591 2,174,480 8,409 1 ,353 5,420,656 15,650,735 5,034 350 3,413,427 7,391,385 861 742 613,756 2,964,755 2,341 300 770,967 2,542,770 8,997 632 2,506,093 9,408,961 459 25 212,408 848,478 1,145 267 609,132 2,925,677 534 138 288,036 410,991 591 531 1,504,713 4,218,002 5,307 1,164 7,113,604 16,821,015 884 58 1 ,820,835 678,605 2,651 403 829,476 6,038,234 1,245 126 314,711 279,770 3,810 307 2,687,380 3,581 ,591 1 1 ,358 52 3,035,925 1 ,770,325 835 341 306,163 1,210,254 636 123 184,081 366,641 75 49,287 321 486,402 23 48,391 118 147,232 119 122,532 32 436,907 89 196,600 38 121,761 208 8,417,539 110 1 ,326,954 207 900,627 104 107,250 148 455,321 17 161,197 60 774,275 52 48,000 60 771 ,800 416 2,373,847 52 135,709 162 318,184 71 68,111 240 209,613 99 581 ,777 53 126,224 27 17,875 11% 7% 15% 7% 7% 9% 20% 10% 17% 15% 5% 5% 14% 12% 16% 5% 7% 47% 8% 13% 18% 26% 12% 4% 7% 4% 20% 16% 9% 23% 11% 7% 9% 14% 9% 10% 12% 6% 13% 5% 16% 15% 11% 4% 9% 15% 10% 9% 10% 4% 50,973 275,056,938 18,692 5,709,853 85,058 13,946,754 154,723 140,503 99,797,570 14,220 194,915,975 5,297 26,075,602 ------- FY2006 water system data-Tribal Active, current systems, from SDWIS/FED 06Q3 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 06Q3 frozen violations table Key: # systems Pop served Region 01 02 04 05 06 07 08 09 10 Navajo Nation CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations 1 2 2 41,000 60 70 8 1 1 8,580 175 200 16 2 17 19,436 1,107 1,890 79 26 8 87,687 24,485 1,313 47 17 12 60,413 69,885 719 9 5 4,519 2,650 114 11 3 94,373 4,940 860 241 49 35 255,999 81 ,633 7,773 82 18 12 45,918 13,020 3,183 150 4 5 137,507 2,505 1,068 5 41,130 10 8,955 35 22,433 113 113,485 76 131,017 14 7,169 128 100,173 325 345,405 112 62,121 159 141,080 5 41,130 8 2 4,855 4,100 34 1 12,933 9,500 111 2 112,996 489 72 4 125,167 5,850 13 1 6,469 700 103 25 67,912 32,261 306 19 314,999 30,406 99 13 47,608 14,513 154 5 123,798 17,282 0% 0% 0% 0% 3 19% 3,318 17% 1 1% 30 0% 3 6% 4,928 8% 1 11% 700 15% 18 16% 18,395 19% 35 15% 61,610 24% 3 4% 2,525 5% 4 3% 9,790 7% 747 130 100 977 905 72 68 755,432 197,810 19,726 857,867 115,101 101,296 FY2006 water system data-Commonwealths and Territories Active, current systems, from SDWIS/FED 06Q3 frozen inventory table Key: Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 06Q3 frozen violations table # systems Pop served CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations Amer. Samoa Guam N. Marianas Puerto Rico Virgin Islands 19 51,435 5 2 193,754 620 65 27 11 95,983 7,625 1 ,298 456 53 5 5,467,618 45,462 2,314 74 141 86 78,968 46,936 10,628 19 51 ,435 7 194,374 103 104,906 514 5,515,394 301 136,532 13 6 5,277 46,158 4 3 154,370 40,004 99 4 38,424 66,482 278 236 801,958 4,713,436 298 3 67,532 69,000 11 48,000 1 140 234 3,602,485 58% 93% 0% 0% 2% 0% 51% 66% 0% 0% 619 223 102 944 692 252 246 5,887,758 100,643 14,240 1,067,561 4,935,080 3,650,625 ------- Government Performance and Results Act (GPRA)- Strategic Sub-objective For Drinking Water 2.1.1 GPRA requires agencies to develop plans for what they intend to accomplish, measure how well they are doing, make appropriate decisions based on the information they have gathered, and communicate information about their performance to Congress and to the public. EPA Strategic Objective 2.1: Protect Public Health, Sub-objective 2.1.1: Water Safe To Drink: By 2008, 95% of the population served by community water systems will receive drinking water that meets all applicable health-based drinking water standards through effective treatment and source water protection. (2002 Baseline: 93.6 percent of population; note that year-to-year performence is expected to change over time as new standards take effect.) Notice: These measures 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. By EPA region Nationally 123456789 10 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 89.4% 88.5% 90.0% 89.6% 93.6% 90.8% 90.7% 90.5% 89.0% 86.5% 85.6% 83.8% 83.0% 78.8% 92% 92% 93% 89% 88% 65% 62% 75% 64% 62% 60% 57% 57% 60% 61% 55% 80% 54% 81% 77% 76% 61% 60% 55% 53% 52% 55% 56% 93% 93% 85% 95% 98% 98% 97% 98% 97% 97% 92% 91% 87% 85% 93% 93% 93% 93% 96% 95% 95% 95% 95% 93% 93% 92% 90% 90% 92% 94% 96% 95% 94% 92% 95% 95% 95% 92% 92% 92% 88% 77% 88% 88% 92% 93% 93% 96% 96% 95% 95% 93% 94% 88% 87% 92% 91% 91% 92% 93% 95% 90% 95% 95% 94% 95% 95% 95% 94% 93% 96% 95% 92% 92% 97% 94% 94% 94% 93% 91% 92% 90% 91% 92% 98% 95% 86% 98% 99% 97% 94% 97% 95% 95% 91% 88% 90% 69% 95% 95% 93% 93% 91% 83% 83% 94% 89% 74% 74% 75% 87% 85% CT NJ DE AL IL AR IA CO AZ AK ME NY DC FL IN LA KS MT CA ID MA PR MD GA Ml NM MO ND HI OR NH VI PA KY MN OK NE SD NV WA Rl VA MS OH TX UT AS VT WV NC Wl WY GU SC MP TN PW Health-based violations include Maximum Contaminant Level (MCL), Maximum Residual Disinfectant Level (MRDL) and Treatment Technique (TT) violations. Population data are based on active, current water systems For FY2006, population and violation data are from SDWIS/FED 06Q3 frozen tables. For FY2005, population and violation data are from SDWIS/FED 05Q4 frozen tables. For FY2004, population and violation data are from SDWIS/FED 04Q4 frozen tables. For FY2003, population and violation data are from SDWIS/FED 03Q4 frozen tables. For FY2002, population and violation data are from SDWIS/FED 02Q4 frozen tables. For FY2001, population and violation data are from SDWIS/FED 01Q4 frozen tables. CA population data from OOQ4 frozen tables For FY2000, population and violation data are from SDWIS/FED OOQ4 frozen tables. For FY1999, population and violation data are from SDWIS/FED 99Q4 frozen tables. For FY1998, population and violation data are from SDWIS/FED 98Q4 frozen tables. For FY1997 and earlier, population and violation data are from SDWIS/FED 98Q1 frozen tables. ------- Government Performance and Results Act (GPRA)-- Strategic Targets for Regulations In Place Before 12/2001 GPRA requires agencies to develop plans for what they intend to accomplish, measure how well they are doing, make appropriate decisions based on the information they have gathered, and communicate information about their performance to Congress and to the public. EPA Strategic Targets: by 2008, 95% of community water systems and 95% of the population served by them will provide drinking water that meets all existing health-based standards with which systems need to comply as of December 2001. (2002 Baseline: 93.6% of the population, 91.6 percent of systems). Notice: These measures 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. % Population served By EPA region Nationally 1 10 2006 2005 2004 2003 2002 91.5% 91.0% 92.2% 91.0% 93.7% 94% 93% 94% 90% 88% 65% 62% 86% 59% 81% 95% 95% 92% 97% 98% 96% 95% 95% 94% 96% 93% 95% 96% 95% 94% 92% 94% 96% 96% 94% 95% 94% 93% 94% 95% 97% 96% 93% 93% 97% 98% 95% 86% 98% 99% 96% 95% 93% 93% 91% % Systems The systems measure was added to provide context to the population-based measure because it is less volatile and is not biased towards large systems. By EPA region Nationally 1 8 10 2006 2005 2004 2003 2002 91.7% 91.7% 91.8% 92.1% 91.6% 86% 87% 87% 86% 86% 90% 88% 90% 90% 89% 93% 94% 92% 93% 92% 94% 94% 94% 93% 94% 92% 93% 93% 94% 93% 93% 93% 93% 93% 93% 91% 90% 90% 89% 87% 92% 92% 92% 92% 92% 91% 92% 92% 95% 95% 88% 87% 87% 88% 87% CT NJ DE AL IL AR IA CO AZ AK ME NY DC FL IN LA KS MT CA ID MA PR MD GA Ml NM MO ND HI OR NH VI PA KY MN OK NE SD NV WA Rl VA MS OH TX UT AS VT WV NC Wl WY GU SC MP TN PW Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Population data are based on active, current water systems For FY2006, population and violation data are from SDWIS/FED 06Q3 frozen tables. For FY2005, population and violation data are from SDWIS/FED 05Q4 frozen tables. For FY2004, population and violation data are from SDWIS/FED 04Q4 frozen tables. For FY2003, population and violation data are from SDWIS/FED 03Q4 frozen tables. For FY2002, population and violation data are from SDWIS/FED 02Q4 frozen tables. ------- Government Performance and Results Act (GPRA)-- Strategic Targets for Regulations In Place After 2001 GPRA requires agencies to develop plans for what they intend to accomplish, measure how well they are doing, make appropriate decisions based on the information they have gathered, and communicate information about their performance to Congress and to the public. EPA Strategic Targets: by 2008, 80% of community water systems and 95% of the population served by them will provide drinking water that meets all existing health-based standards with a compliance date of January 2002 or later. Notice: These measures 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. Applicable standards in FY2006: * Interim Enhanced Surface Water Treatment Rule-CWSs w/ surface water sources serving 10,000 or more people * Disinfection By-Products (DBP) Rule for CWSs that disinfect. In FY2003, this rule applied to systems serving >10,000 people % Population served By EPA region 1 23456789 10 Nationally 2006 2005 2004 2003 97.3% 97.2% 99.2% 93.1% 98% 99% 99% 96% 97% 97% 99% 76% 97% 97% 100% 92% 97% 97% 99% 93% 99% 99% 100% 99% 94% 93% 98% 86% 97% 97% 99% 92% 98% 98% 99% 98% 99% 99% 100% 100% 99% 99% 100% 100% % Systems The systems measure was added to provide context to the population-based measure because it is less volatile and is not biased towards large systems. By EPA region Natio 2006 2005 2004 2003 nally 96.9% 96.3% 96.6% 95.7% 1 98% 99% 99% 98% CT ME MA NH Rl VT 2 90% 85% 84% 79% NJ NY PR VI 3 98% 98% 92% 98% DE DC MD PA VA WV 4 97% 98% 98% 97% AL FL GA KY MS NC SC TN 5 99% 99% 100% 100% IL IN Ml MN OH Wl 6 95% 93% 96% 94% AR LA NM OK TX 7 97% 97% 99% 97% IA KS MO NE 8 99% 99% 99% 99% CO MT ND SD UT WY 9 100% 99% 100% 100% AZ CA HI NV AS GU MP PW 10 99% 100% 100% 100% AK ID OR WA Health-based violations include Maximum Contaminant Level (MCL), Maximum Residual Disinfectant Level (MRDL), and Treatment Technique (TT) violations. Population data are based on all active Community Water Systems For FY2006, population and violation data are from SDWIS/FED 06Q3 frozen tables. For FY2005, population and violation data are from SDWIS/FED 05Q4 frozen tables. For FY2004, population and violation data are from SDWIS/FED 04Q4 frozen tables. For FY2003, population and violation data are from SDWIS/FED 03Q4 frozen tables. ------- CWS violations reported by FY FY2006 data from SDW1S/FED 06Q3 frozen tables FY2005 data from SDW1S/FED 05Q4 frozen tables, except for Chem M/Rs which will be from 06Q1 FY2004 data from SDWIS/FED 04Q4 frozen tables, except for Chem M/Rs which are from 05Q1 FY2003 data from SDWIS/FED 03Q4 frozen tables, except for Chem M/Rs which are from 04Q1 FY2002 data from SDWIS/FED 02Q4 frozen tables, except for Chem M/Rs which are from 03Q1 Number of violations FY MCL MRDL TT M/R Other* Total 2006 2005 2004 2003 2002 9,242 9,739 5,562 4,884 4,693 7 4 6 1 2,790 3,036 2,168 2,299 2,408 67,301 124,605 96,225 68,840 80,635 19,245 18,414 14,459 12,671 1 1 ,759 98,585 155,798 118,420 88,695 99,495 Number of systems in violation FY MCL MRDL M/R Other* Population affected FY2006 CWS results, by system size Number of violations MCL MRDL T Very small Small Medium Large Very large M/R Other Number of systems in violation MCL MRDL M/R Other Very small Small Medium Large Very large Population affected MCL MRDL M/R Other Very small Small Medium Large Very large Total 2006 2005 2004 2003 2002 4,438 4,472 3,455 3,069 3,193 3 4 4 1 1,538 1,625 1,409 1,458 1,482 13,106 14,403 13,693 12,880 12,430 9,600 10,258 8,947 8,109 8,386 21 ,677 22,902 21 ,200 20,343 20,232 FY 2006 2005 2004 2003 2002 MCL 16,918,011 19,228,465 15,060,424 16,082,938 8,800,095 MRDL 46,344 424,859 3,617 2,250 TT 16,612,762 16,879,450 16,588,301 16,969,087 9,245,467 M/R 52,415,065 62,51 1 ,599 51,043,156 49,812,213 32,503,639 Other* 23,372,794 23,442,800 17,833,120 12,726,332 17,809,478 Total 83,638,885 91 ,626,483 79,058,089 81 ,672,086 56,644,512 Total 4,653 2,868 978 719 24 5 2 1,439 829 271 216 35 48,547 1 1 ,532 4,261 2,810 151 14,204 3,530 885 584 42 68,843 18,759 6,400 4,331 252 Total 2,400 1,257 478 293 10 1 2 837 417 167 102 15 8,818 2,855 800 577 56 6,498 2,125 580 371 26 13,795 5,148 1,580 1,062 92 Total 390,967 1 ,839,900 2,750,889 6,957,662 4,978,593 8,994 37,350 139,946 638,888 965,283 3,095,924 11,772,721 1 ,369,845 3,787,468 4,642,865 15,127,061 27,487,826 998,387 2,849,673 3,258,524 9,405,653 6,860,557 2,171,384 7,051 ,980 9,082,041 27,537,274 37,796,206 * Totals for the number of systems in violation, and for population affected, should be lower than the sum in each row. This is because some systems will have incurred more than one type of violation. Compliance information since FY2003 includes new DBP and IESWTR rules ------- NTNCWS violations reported by FY FY2006 data from SDW1S/FED 06Q3 frozen tables FY2005 data from SDW1S/FED 05Q4 frozen tables, FY2004 data from SDWIS/FED 04Q4 frozen tables, FY2003 data from SDWIS/FED 03Q4 frozen tables, FY2002 data from SDWIS/FED 02Q4 frozen tables, Number of violations FY MCL MRDL TT M/R except for Chem M/Rs which will be from 06Q1 except for Chem M/Rs which are from 05Q1 except for Chem M/Rs which are from 04Q1 except for Chem M/Rs which are from 03Q1 Other Number of systems in violation FY MCL MRDL TT M/R Other Population affected FY MCL MRDL TT M/R Other Total 2006 2005 2004 2003 2002 1,903 1,980 1,381 1,391 1,336 827 1 853 681 680 720 33,512 54,561 37,514 32,578 38,805 2,063 717 538 503 227 38,305 58,112 40,114 35,152 41,088 Total 2006 2005 2004 2003 2002 1,227 1,207 1,033 1,029 1,005 539 1 550 474 495 529 5,150 5,591 4,963 4,758 5,322 1,059 491 356 317 155 6,609 6,822 5,999 5,803 6,267 Total 2006 2005 2004 2003 2002 409,163 352,038 288,280 266,522 302,322 170,672 110 164,644 130,242 140,053 165,522 1,674,286 1,668,159 1,402,090 1,434,673 1,566,034 277,538 122,177 88,003 85,026 57,016 2,139,678 2,044,368 1,713,877 1,748,569 1,897,686 TNCWS violations reported by FY Number of violations FY MCL MRDL 2006 2005 2004 2003 2002 TT M/R Other Number of systems in violation FY MCL MRDL TT M/R Other Population affected FY MCL MRDL 2006 2005 2004 2003 2002 TT M/R Other Total 5,287 5,043 5,032 5,082 4,837 474 502 415 573 626 32,767 37,505 38,705 35,005 39,451 19,010 4,800 3,028 8,640 2,339 57,538 47,850 47,180 49,300 47,253 Total 2006 2005 2004 2003 2002 4,082 3,977 3,974 4,071 3,858 211 215 195 245 249 15,575 17,556 17,334 17,439 19,191 6,417 2,284 1,697 3,685 1,142 21,816 21,258 20,680 21,360 22,193 Total 1 ,297,464 542,026 549,673 541 ,950 504,967 50,372 86,648 51,915 40,518 60,692 2,166,907 2,264,085 2,207,974 2,160,890 2,154,654 642,080 344,41 1 234,291 340,950 137,795 3,597,017 2,816,995 2,708,036 2,649,642 2,552,563 * Totals for the number of systems in violation, and for population affected, should be lower than the sum in each row. This is because some systems will have incurred more than one type of violation. Compliance information since FY2003 includes new DBP and IESWTR rules ------- FY2006 MCL, MRDL and TT violations reported From SDW1S/FED 06Q3 frozen violations table Microbials: Very small Small Medium Large 25-500 501-3,300 3,301-10,0000,001-100,00 Applies to all water systems Very Large >100,000 Total TCR/T 7,847 5,974 640,584 972 780 1,019,876 298 247 1,466,910 223 176 3,954,458 9 7 4,229,956 9,349 7,184 11,311,784 Applies to surface water systems that disinfect ( TNCWSs that use CIO2) Stage 1 DBP 1,527 532 104,540 1,989 663 1,040,109 637 253 1,410,896 168 86 1 ,880,893 4,321 1,534 4,436,438 Applies to surface water systems SWTR 938 450 72,670 308 146 202,606 74 55 330,107 61 25 805,610 5 3 7,686,534 1,386 679 9,097,527 Applies to surface water systems IE<1SWTR 183 62 11,514 153 82 131,358 58 36 199,015 98 39 1 ,347,375 24 10 3,153,486 516 229 4,842,748 Organics: Applies to CWS and NTNCWS voc soc 56 22 2,791 19 12 1,644 8 6 10,137 10 6 6,640 1 1 3,825 3 2 8,441 4 2 108,360 69 31 125,113 32 20 16,725 Inorganics: Applies to CWS and NTNCWS Nitrates Arsenic Other IOC 789 466 55,900 325 243 37,731 321 113 18,658 114 62 75,051 85 67 87,199 51 20 31 ,072 2 1 7,994 29 16 91,432 10 8 51,197 6 5 144,743 9 4 192,734 15 7 203,708 1 1 983,264 912 535 1,266,952 448 330 409,096 397 148 304,635 Applies to CWS Radionuclides 629 208 37,014 244 78 104,669 110 38 223,160 280 37 921 ,670 14 2 256,221 1,277 363 1 ,542,734 Applies to CWS and NTNCWS Lead & Copper 1,196 876 128,327 287 217 281 ,988 52 37 212,265 23 18 529,631 6 2 932,701 1,564 1,150 2,084,912 Acronyms: TCR/T = Total Coliform Rule/Turbidity SWTR = Surface Water Treatment Rule IE<1SWTR = Interim Enhanced and Long Term 1 Surface Water Treatment Rule DBP = Disinfectants By-Products Rule VOC = Regulated volatile organic contaminants (e.g., Benzene) other than TTHMs (which are listed in DBP Rule) SOC = Synthetic organic chemicals (e.g., Atrazine) Other IOC = Regulated inorganic contaminants (e.g., arsenic) other than Copper, Lead, Nitrate, and Nitrite ------- FY2006 Monitoring violations reported From SDWIS/FED 06Q3 frozen violations table Microbials: Very small Small Medium 25-500 501-3,300 3,301-10,000 Applies to all water systems Large 10,001-100,000 Key: Very Large >1 00,000 # violations # systems Pop. affected Total TCR/T 29,330 18,131 1 ,930,825 2,773 1,806 2,190,593 438 282 1,648,181 220 180 4,487,875 29 23 5,517,000 32,790 20,422 15,774,474 Applies to surface water systems that disinfect ( TNCWSs that use CIO2) Stage 1 DBP 4,039 1 ,525 1 ,957 748 333,253 1,013,089 403 244 18 213 154 12 1,214,795 3,676,519 5,251,815 6,229 3,084 1 1 ,489,471 Applies to surface water systems SWTR 1,474 349 66,103 392 154 192,287 93 48 260,467 43 21 736,399 8 4 1 ,292,000 2,010 576 2,547,256 Applies to surface water systems IE<1SWTR 388 101 21 ,669 308 93 133,807 78 42 255,765 46 27 1 ,046,725 13 8 4,812,677 833 271 6,270,643 Organics: Applies to CWS and NTNCWS voc soc 26,065 825 100,839 11,218 334 37,994 4,972 185 233,866 1,338 66 81,329 1,162 39 223,546 661 33 176,756 773 30 959,255 302 22 566,004 20 1 178,164 32,992 1,080 1 ,695,670 13,519 455 862,083 Inorganics: Applies to CWS and NTNCWS Nitrates Arsenic Other IOC 7,560 6,241 646,654 423 383 52,818 2,168 222 27,845 691 515 627,294 94 84 121,136 459 50 80,118 134 82 432,770 22 20 104,137 180 18 98,684 131 69 2,036,417 19 18 525,329 153 18 508,961 16 9 3,283,081 8,532 6,916 7,026,216 558 505 803,420 2,960 308 715,608 Applies to CWS Radionuclides 478 139 20,468 164 49 63,761 72 21 126,632 87 15 390,766 1 1 660,000 802 225 1 ,261 ,627 Applies to CWS and NTNCWS Lead & Copper 10,215 7,130 1 ,01 1 ,780 2,148 1,580 1,932,859 408 328 1,888,082 226 189 4,503,845 30 15 14,075,648 13,027 9,242 23,412,214 Acronyms: TCR/T = Total Coliform Rule/Turbidity SWTR = Surface Water Treatment Rule IE<1SWTR = Interim Enhanced and Long Term 1 Surface Water Treatment Rule DBP = Disinfectants By-Products Rule VOC = Regulated volatile organic contaminants (e.g., Benzene) other than TTHMs (which are listed in DBP Rule) SOC = Synthetic organic chemicals (e.g., Atrazine) Other IOC = Regulated inorganic contaminants (e.g., arsenic) other than Copper, Lead, Nitrate, and Nitrite ------- Underground Injection Control program-inventory of wells Types of wells: Class I Deep industrial waste disposal Class II For oil and natural gas production Class III Related to mineral recovery Class IV Banned, inject hazardous or radioactive waste above USDWs Class V Generally shallow disposal wells. There are an estimated 650,000 Class V wells nationally 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 septics Class I Class I non- hazardous hazardous waste wells waste wells Class II wells Class III facilities (which may contain multiple wells) Class III wells Class IV facilities (which may contain multiple wells) AK AL AR AZ CA CO FL IA IL IN KS KY LA Ml MO MS MT ND NE NM NV NY OH OK OR PA SD TN TX UT VA WA WV WY 6 e, y.y.'.'io. 6 : ' " 5' 1 .. 136... 3- " V 4 7. 6. 44' 1 ." ..i^I 28" 9 15: " "e;" ' i"_ i 2 1 """"' '"" "5': ....... ... _, 10, 2, 11 " • •- ; • • 10:-- 60: 46- y '" " 3:' "' '" "" 23.'" EPA R2 tribal : ' " 1 EPA R6 tribal) 1 EPA R8 tribal EPA R9 tribal " " "\ 925 347: 1,078 24,955" 787 54: 1 ; ' 8,949 1,340, 16,371 3,429 3,824: 1,459 211":' 881' 897 377: 704. 5,577- 12: 503 2,890: 11,448 2. 1,897, 63 14' 51, 998 i 256 252: 1 700.! 4,666' 12 2,674 : 72Z\ " 542. 1 y 3; 1" 2 5: -\5- 3 1 • '19; 6; 3. 1 i r: 86 1 1; " 3';' .... 12- 3f 15 73'" 35.: 157; 67* "22; 1,879 104, 126< 47' 1- 10, 5,789; 4, '' " '3: 31 : 8,211. ...1 2 1 1 122 364 146,878 164 16,577 ------- |