United States Environmental Protection Agency oEPA FACTOIDS: Drinking Water and Ground Water Statistics for 2002 ------- Office of Ground Water and Drinking Water (4606M) EPA816-K-03-001 www. epa. gov/safewater January 2003 Printed on Recycled Paper ------- There are approximately 160,000 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 160,000 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 (268 milion) get their water from a community water system. There are approximately 54,000 community water systems, but just seven percent of those systems (3,797) 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 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. The underground injection control program statistics are based on separate reporting from the states to EPA. 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] 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] 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] ------- FY2002 Drinking Water Factoids Public Water System Inventory data Active, current systems, from Safe Drinking Water Information System/Federal version (SDWIS/FED) 02Q4 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 30,703 14,331 4,606 3,436 361 5,044,743 20,179,648 26,716,617 96,258,363 119,523,295 57% 27% 9% 6% 1% 2% 8% 10% 36% 45% 15,887 2,690 93 14 3 2,217,679 2,643,065 467,436 324,563 380,046 85% 14% 0% 0% 0% 37% 44% 8% 5% 6% 86,384 2,685 100 17 6 7,337,976 2,645,455 538,268 369,813 11,958,001 97% 3% 0% 0% 0% 32% 12% 2% 2% 52% 53,437 267,722,666 100% 100% 18,687 6,032,789 100% 100% 89,192 22,849,513 100% 100% Total # systems 132,974 19,706 4,799 3,467 370 161,316 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 41,691 11,746 84,025,121 183,697,545 78% 22% 31 % 69% 17,931 756 5,297,615 735,174 96% 4% 88% 12% 87,130 2,062 12,107,193 10,742,320 98% 2% 53% 47% 53,437 267,722,666 100% 100% 18,687 6,032,789 100% 100% 89,192 22,849,513 100% 100% Total # systems 146,752 101,429,929 14,564 195,175,039 161,316 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 02Q4 tables are "frozen" in early January 2003 ------- FY2002 water system data--by State Active, current systems, from SDWIS/FED 02Q4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 02Q4 frozen violations table Key: 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 433 209 931 456,465 44,695 96,172 581 33 77 5,113,337 19,648 7,578 728 122 280 2,440,174 13,218 16,510 796 208 653 4,714,686 139,092 137,770 3,031 72 2,897 31,646,479 21,284 10,963,062 907 1 79 1 ,008 4,437,972 81 ,605 1 ,233,645 578 667 1 ,803 2,673,210 126,720 62,348 2 595,000 246 100 215 817,003 26,535 50,897 1 ,945 1 ,053 3,487 16,126,113 269,467 304,128 1 ,664 262 589 7,049,878 73,497 91 ,957 116 9 4 1,285,174 6,385 500 1,144 150 665 2,494,781 48,805 83,237 742 243 1 ,057 909,087 48,794 116,611 1 ,798 434 3,445 11,231,157 156,425 383,301 865 692 2,815 4,467,086 209,888 388,634 918 60 103 2,512,616 25,390 4,019 439 64 158 4,431,770 25,591 11,748 1,146 198 352 4,847,721 84,877 73,199 519 244 914 8,910,402 68,239 143,447 499 565 2,705 4,438,678 160,902 159,609 392 375 1 ,226 614,879 72,785 199,389 1 ,470 1 ,744 8,966 7,208,799 484,444 1 ,264,039 957 584 6,403 4,006,972 97,749 453,067 1 ,453 254 1 ,027 4,818,596 80,491 136,850 1,187 98 122 2,969,491 81,440 25,015 1,573 597,332 691 5,140,563 1,130 2,469,902 1,657 4,991 ,548 6,000 42,630,825 2,094 5,753,222 3,048 2,862,278 2 595,000 561 894,435 6,485 16,699,708 2,515 7,215,332 129 1,292,059 1,959 2,626,823 2,042 1 ,074,492 5,677 11,770,883 4,372 5,065,608 1,081 2,542,025 661 4,469,109 1,696 5,005,797 1,677 9,122,088 3,769 4,759,189 1,993 887,053 12,180 8,957,282 7,944 4,557,788 2,734 5,035,937 1,407 3,075,946 1 ,333 240 294,836 302,496 424 267 1,482,263 3,658,300 710 420 918,912 1,550,990 1 ,430 227 1,371,351 3,620,197 5,044 956 8,168,520 34,462,305 1 ,634 460 1 ,694,430 4,058,792 2,981 67 487,230 2,375,048 2 595,000 556 5 427,805 466,630 6,421 64 14,242,553 2,457,155 2,302 213 1,642,076 5,573,256 113 16 1,169,290 122,769 1,808 151 1,478,768 1,148,055 1 ,965 77 1,007,173 67,319 4,983 694 3,330,456 8,440,427 4,237 135 2,759,006 2,306,602 751 330 810,072 1,731,953 290 371 370,075 4,099,034 1,612 84 3,009,656 1,996,141 1 ,498 1 79 2,195,101 6,926,987 3,674 95 852,193 3,906,996 1,910 83 457,679 429,374 1 1 ,872 308 3,446,294 5,510,988 7,832 112 3,130,897 1,426,891 2,485 249 1,806,740 3,229,197 1 ,403 4 2,755,467 320,479 60 14% 27,089 6% 20 3% 125,802 2% 85 12% 159,713 7% 103 13% 262,467 6% 54 2% 105,866 0% 58 6% 57,080 1% 67 12% 98,684 4% 0% 0% 14 6% 25,735 3% 84 4% 605,569 4% 65 4% 139,398 2% 5 4% 55,378 4% 68 6% 61 ,680 2% 75 10% 73,492 8% 164 9% 732,214 7% 77 9% 131,682 3% 80 9% 86,361 3% 18 4% 203,249 5% 101 9% 306,293 6% 92 18% 1,340,460 15% 29 6% 7,622 0% 80 20% 82,526 13% 74 5% 239,806 3% 29 3% 519,812 13% 214 15% 223,727 5% 64 5% 300,154 10% ------- FY2002 water system data--by State, cont. Active, current systems, from SDWIS/FED 02Q4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 02Q4 frozen violations table Key: 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 663 225 1,124 673,591 65,603 172,677 2,401 625 4,699 6,222,140 177,672 410,067 318 28 184 551,147 3,867 15,858 614 178 575 1 ,434,494 39,444 54,530 684 443 1 ,042 784,663 91,515 214,588 603 879 2,661 7,811,222 247,794 372,360 615 154 477 1,580,722 45,205 181,870 258 106 249 1,922,052 34,979 24,760 2,859 775 6,578 17,762,575 335,362 827,869 1 ,354 1 ,039 3,264 10,069,425 261,023 510,137 1,159 117 387 3,419,905 18,944 37,668 889 341 1 ,477 2,833,821 75,136 223,665 2,169 1,244 6,704 10,377,016 509,069 834,761 84 69 333 1,268,719 24,398 57,826 672 202 597 3,309,998 66,835 37,014 469 32 196 650,745 3,877 33,439 668 50 447 5,337,935 31,239 52,962 4,513 795 1,275 21,807,918 321,325 256,261 455 68 441 3,687,363 46,300 79,595 1 ,320 593 1 ,662 7,332,834 373,614 788,875 442 226 700 502,007 41,436 103,972 2,281 307 1,581 5,283,667 258,659 283,542 1,110 954 9,434 3,764,549 197,017 703,683 556 1 71 559 1 ,407,509 55,402 39,41 1 272 88 377 434,709 17,747 74,745 2,012 911,871 7,725 6,809,879 530 570,872 1,367 1 ,528,468 2,169 1 ,090,766 4,143 8,431 ,376 1,246 1 ,807,797 613 1 ,981 ,791 10,212 18,925,806 5,657 10,840,585 1,663 3,476,517 2,707 3,132,622 10,117 11,720,846 486 1 ,350,943 1,471 3,413,847 697 688,061 1,165 5,422,136 6,583 22,385,504 964 3,813,258 3,575 8,495,323 1,368 647,415 4,169 5,825,868 1 1 ,498 4,665,249 1,286 1,502,322 737 527,201 1 ,792 220 505,361 406,510 7,105 620 1,987,636 4,822,243 447 83 264,532 306,340 1 ,290 77 753,365 775,103 2,112 57 566,838 523,928 4,043 100 3,109,288 5,322,088 1 ,204 42 1 ,587,458 220,339 580 33 279,117 1,702,674 9,038 1,174 5,473,196 13,452,610 5,238 419 3,540,262 7,300,323 938 725 691,801 2,784,716 2,404 303 836,956 2,295,666 9,548 569 2,816,797 8,904,049 461 25 211,374 1,139,569 1 ,249 222 690,825 2,723,022 566 131 296,093 391 ,968 609 556 1 ,454,309 3,967,827 5,420 1,163 6,722,163 15,663,341 832 132 763,101 3,050,157 3,186 389 1,513,844 6,981,479 1,229 139 289,672 357,743 3,894 275 2,775,801 3,050,067 1 1 ,450 48 2,938,453 1,726,796 897 389 311,329 1,190,993 626 111 185,112 342,089 60 9% 41 ,808 6% 233 10% 293,573 5% 32 10% 15,305 3% 188 31% 231,612 16% 101 15% 191,680 24% 37 6% 299,758 4% 61 10% 134,633 9% 36 14% 41 ,372 2% 124 4% 1 ,630,869 9% 88 6% 232,855 2% 75 6% 632,341 18% 149 17% 232,004 8% 96 4% 285,421 3% 2 2% 300 0% 77 11% 142,898 4% 29 6% 1 1 ,651 2% 31 5% 152,010 3% 240 5% 998,095 5% 50 11% 184,509 5% 187 14% 203,074 3% 49 11% 26,365 5% 258 11% 506,706 10% 108 10% 594,666 16% 48 9% 93,101 7% 10 4% 2,153 0% 51,984 18,328 88,925 159,237 145,426 13,811 4,149 261,448,252 5,811,428 22,798,867 99,873,526 190,185,021 13,150,618 ------- FY2002 water system data-Tribal systems Active, current systems, from SDWIS/FED 02Q4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 02Q4 frozen violations table Key: Region 01 02 04 05 06 07 08 09 10 CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations 1 2 3 120 60 670 7 1 4,200 150 13 3 23 15,347 1,225 3,360 78 36 9 79,968 25,019 1,346 45 16 16 56,834 1 1 ,050 843 9 4 6,173 525 108 8 1 67,917 4,556 150 415 37 44 348,584 44,014 15,314 78 11 6 38,474 6,939 1 ,846 6 850 8 4,350 39 19,932 123 106,333 77 68,727 13 6,698 117 72,623 496 407,912 95 47,259 6 850 7 1 2,600 1,750 37 2 10,407 9,525 121 2 105,844 489 73 4 65,372 3,355 12 1 6,200 498 98 19 51 ,661 20,962 460 36 360,490 47,422 88 7 37,484 9,775 0% 0% 0% 0% 1 8% 460 3% 5 6% 882 1% 10 22% 18,612 33% 2 22% 3,250 53% 9 8% 4,192 6% 8 2% 18,893 5% 14 18% 8,789 23% 754 113 107 974 902 72 49 617,617 92,863 24,204 640,908 93,776 55,078 FY2002 water system data-Commonwealths and Territories Active, current systems, from SDWIS/FED 02Q4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 02Q4 frozen violations table Key: Amer. Samoa Guam N. Marianas Islands Puerto Rico Palau Virgin Islands CWS NTNCWS TNCWS Total Ground Surface CWSs w/ reported health-based violations 22 52,458 10 2 109,070 770 80 35 15 103,435 9,751 1,754 453 51 6 5,281,598 44,923 2,414 16 2 12,060 1,163 118 156 139 98,176 71,891 22,274 22 52,458 12 109,840 130 114,940 510 5,328,935 18 13,223 413 192,341 12 10 49,618 2,840 8 4 20,990 88,850 127 3 51 ,389 63,551 271 239 788,525 4,540,410 2 16 400 12,823 4 409 4,573 187,768 17 77% 51 ,733 99% 0% 0% 0% 0% 263 58% 3,865,975 73% 0% 0% 11 9% 2,975 3% 699 246 160 1,105 424 681 291 5,656,797 128,498 26,442 915,495 4,896,242 3,920,683 ------- Government Performance and Results Act--PWSS measure 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's goal is that by 2005, the population served by community water systems providing drinking water that meets all existing health-based standards will increase to 95% from a baseline of 83% in 1994. Nationally 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 94% 91% 91% 91% 89% 87% 86% 84% 83% 79% By region 1 2 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 88% 65% 62% 75% 64% 62% 60% 57% 57% 60% 81% 77% 76% 61% 60% 55% 53% 52% 55% 56% CT NJ ME NY MA PR NH VI Rl VT 3 98% 98% 97% 98% 97% 97% 92% 91% 87% 85% DE DC MD PA VA WV 4 96% 95% 95% 95% 95% 93% 93% 92% 90% 90% AL FL GA KY MS NC SC TN 5 94% 92% 95% 95% 95% 92% 92% 92% 88% 77% IL IN Ml MN OH Wl 6 93% 96% 96% 95% 95% 93% 94% 88% 87% 92% AR LA NM OK TX 7 95% 90% 95% 95% 94% 95% 95% 95% 94% 93% IA KS MO NE 8 97% 94% 94% 94% 93% 91% 92% 90% 91% 92% CO MT ND SD UT WY 9 99% 97% 94% 97% 95% 95% 91% 88% 90% 69% AZ CA HI NV AS GU MP PW 10 91% 83% 83% 94% 89% 74% 74% 75% 87% 85% AK ID OR WA Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Population data are based on active, current water systems 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. ------- CWS violations reported byFY FY2002 data from SDWIS/FED 02Q4 frozen tables, except for Chem FY2001 data from SDWIS/FED 01Q4 frozen tables, except for Chem FY2000 data from SDWIS/FED OOQ4 frozen tables, except for Chem FY1999 data from SDWIS/FED 99Q4 frozen tables, except for Chem FY1998 data from SDWIS/FED 98Q4 frozen tables, except for Chem FY1997 and earlier data from SDWIS 98Q1 frozen tables Number of violations M/Rs which will be from 03Q1 M/Rs which are from 02Q1 M/Rs which are from 01Q1 M/Rs which are from OOQ1 M/Rs which are from 99Q1 FY MCL 2002 2001 2000 1999 1998 1997 4,693 5,231 4,754 5,497 6,315 5,785 TT 2,408 2,493 3,053 2,202 2,503 2,707 M/R 80,635 63,476 51,912 56,307 52,998 63,432 Other* 1 1 ,759 1 1 ,455 10,634 1,025 1,614 1,473 Total 99,495 82,655 70,353 65,031 63,430 73,397 Number of systems in violation Population affected FY MCL 2002 2001 2000 1999 1998 1997 3,193 3,241 3,161 3,298 3,733 3,710 TT 1,482 1,572 1,682 1,046 1,095 1,094 M/R 12,430 13,639 13,736 9,259 9,853 10,809 Other* 8,386 8,631 8,937 618 893 861 Total 20,232 20,996 21,308 1 1 ,946 12,868 13,864 FY MCL 2002 2001 2000 1999 1998 1997 8,800,095 11,165,733 1 1 ,947,655 11,078,268 10,384,541 13,843,906 TT 9,245,467 15,474,893 15,394,154 15,854,547 18,483,671 22,056,053 M/R 32,503,639 52,618,908 34,186,550 19,829,544 28,227,720 27,179,042 Other* 17,809,478 25,780,359 13,881,076 2,528,920 2,366,440 3,879,561 Total 56,644,512 77,845,089 62,921,077 38,124,231 48,858,948 58,038,069 by system size Number of violations MCL M/R Very small Small Medium Large Very large Number of systems in violation MCL TT Very small Small Medium Large Very large Very small Small Medium Large Very large M/R Population affected MCL M/R Other Other Other Total 2,959 1,066 341 322 5 1,279 662 226 222 19 59,415 12,787 4,488 3,363 582 8,805 2,127 492 311 24 72,458 16,642 5,547 4,218 630 Total 1,957 747 255 230 4 852 380 117 121 12 8,827 2,440 681 446 36 5,981 1,715 406 265 19 13,739 4,324 1,230 880 59 Total 315,482 1 ,058,335 1 ,591 ,865 5,147,835 686,578 144,807 522,157 681 ,352 3,437,504 4,459,647 1 ,305,352 3,270,854 3,923,829 1 1 ,439,407 12,564,197 891 ,397 2,287,317 2,306,454 6,933,662 5,390,648 2,091,341 5,870,368 7,191,586 22,750,279 18,740,938 * Jump in FY2000 due to new violations for failing to issue, or issuing an insufficient, Consumer Confidence report ** 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. ------- NTNCWS violations reported by FY FY2002 data from SDWIS/FED 02Q4 frozen tables, except for FY2001 data from SDWIS/FED 01Q4 frozen tables, except for FY2000 data from SDWIS/FED OOQ4 frozen tables, except for FY1999 data from SDWIS/FED 99Q4 frozen tables, except for FY1998 data from SDWIS/FED 98Q4 frozen tables, except for FY1997 and earlier data from SDWIS/FED 98Q1 frozen tables Number of violations Chem M/Rs which will be from 03Q1 Chem M/Rs, which are from 02Q1 Chem M/Rs, which are from 01Q1 Chem M/Rs which are from OOQ1 Chem M/Rs which are from 99Q1 FY MCL 2002 2001 2000 1999 1998 1997 1,336 1,258 1,243 1,369 1,324 1,389 TT 720 696 834 272 179 227 IWR 38,805 32,847 23,138 27,487 26,612 27,913 Other 227 305 210 145 256 156 Total 41,088 35,106 25,425 29,273 28,371 29,685 Number of systems in violation Population affected FY MCL 2002 2001 2000 1999 1998 1997 1,005 921 925 995 959 1,023 TT 529 515 580 190 109 107 IWR 5,322 5,368 5,513 3,852 4,067 4,772 Other 155 213 169 101 164 108 Total 6,267 6,241 6,445 4,650 4,810 5,531 FY MCL 2002 2001 2000 1999 1998 1997 302,322 359,556 276,758 373,845 244,960 285,722 TT 165,522 222,120 216,701 56,710 26,063 34,087 M/R 1,566,034 1,616,708 1,759,909 883,464 1,108,715 1,311,222 Other 57,016 82,910 37,941 36,223 55,336 39,417 Total 1,897,686 2,012,850 2,075,184 1,229,143 1,306,710 1,560,659 TNCWS violations reported by Number of violations FY MCL TT 2002 2001 2000 1999 1998 1997 FY M/R Number of systems in violation FY MCL TT 2002 2001 2000 1999 1998 1997 M/R Population affected FY MCL 2002 2001 2000 1999 1998 1997 M/R Other Other Other Total 4,837 4,596 4,408 4,967 5,224 5,382 626 677 309 223 287 390 39,451 38,794 35,328 36,651 28,988 33,851 2,339 1,467 915 740 2,157 1,795 47,253 45,534 40,960 42,581 36,656 41,418 Total 3,858 3,687 3,632 3,862 3,798 4,041 249 256 177 139 94 134 19,191 19,623 17,725 19,658 16,006 17,485 1,142 826 656 494 1,113 971 22,193 22,358 20,325 22,185 18,773 20,505 Total 504,967 558,780 506,759 566,066 477,911 537,539 60,692 46,987 44,406 39,547 58,575 64,156 2,154,654 2,385,309 2,568,632 2,220,821 2,071,470 2,205,834 137,795 118,847 78,759 62,786 138,161 122,530 2,552,563 2,792,810 2,979,498 2,628,376 2,423,132 2,622,932 * 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. ------- FY2002 MCL and TT violations reported From SDW1S/FED 02Q4 frozen violations table Very small 25-500 Small 501-3,300 Medium 3,301-10,000 Large 10,001-100,000 Key: # violations # systems Pop. affected Very Large >1 00,000 Total Applies to all water systems TCR/T 7,622 5,888 654,649 1,060 808 1,076,008 291 229 1,415,312 220 182 4,052,772 3 3 580,357 9,196 7,110 7,779,098 Organics: Applies to CWS and NTNCWS TTHM (VOC) Other VOC SOC 8 5 397 51 43 5,171 8 7 748 8 6 8,531 3 3 4,570 2 2 2,475 3 2 15,102 2 2 8,742 21 13 208,277 5 3 61,042 37 24 217,205 62 51 85,885 12 11 11,965 Inorganics: Applies to CWS and NTNCWS Nitrates Other IOC 454 340 42,865 383 179 28,392 106 70 74,752 50 27 37,595 11 7 34,124 15 7 53,612 24 5 144,416 3 3 133,911 595 422 296,157 451 216 253,510 Applies to CWS Radionuclides 228 134 24,947 137 78 107,597 36 21 123,276 40 20 419,044 2 1 106,221 443 254 781 ,085 Applies to surface water systems SWTR 1,297 602 94,666 479 223 310,381 177 80 466,627 149 68 1,923,165 17 10 4,146,833 2,119 983 6,941,672 Applies to CWS and NTNCWS Lead & Copper 1,150 910 137,495 322 263 314,849 57 45 254,121 75 57 1,611,723 2 2 312,814 1,606 1,277 2,631,002 Acronyms: TTHM (VOC) = Total Trihalomethanes Other VOC = Regulated volatile organic contaminants (e.g., Benzene) other than TTHMs SOC = Synthetic organic chemicals (e.g., Atrazine) Other IOC = Regulated inorganic contaminants (e.g., arsenic) other than Copper, Lead, Nitrate, and Nitrite SWTR = Surface Water Treatment Rule TCR/T = Total Coliform Rule/ ------- FY2002 Monitoring/Reporting violations reported From SDW1S/FED 02Q4 frozen violations table (except for Chem M/Rs) Chem M/R data will be from SDWIS/FED 03Q1 frozen violations table, which will be frozen in April Very small Small Medium Large 25-500 501-3,300 3,301-10,000 10,001-100,000 Applies to all water systems TCR/T 33,071 19,140 1 ,856,258 2,616 1,666 2,036,031 337 255 1 ,455,461 166 131 3,251,681 Key: Very Large >1 00,000 12 9 2,523,098 # violations # systems Pop. affected Total 36,202 21,201 11,122,529 Organics: Applies to CWS and NTNCWS TTHM (VOC) Other VOC SOC 15 9 2,029 31,145 1,692 237,129 18,213 1,091 151,491 13 12 14,586 5,668 324 418,785 2,969 235 291 ,073 6 6 30,130 1,559 87 498,676 1,038 84 493,414 78 47 1,184,052 1,011 69 1,685,033 1,167 63 1,612,220 2 2 715,335 203 9 3,228,264 154 8 3,423,332 114 76 1,946,132 39,586 2,181 6,067,887 23,541 1,481 5,971,530 Inorganics: Applies to CWS and NTNCWS Nitrates Other IOC 16,759 12,278 1,146,233 9,475 1,325 181,201 1,052 752 934,553 1,611 248 326,242 235 121 678,950 629 73 428,475 142 80 2,009,942 294 37 1,143,623 29 10 3,309,464 158 11 5,307,188 18,217 13,241 8,079,142 12,167 1,694 7,386,729 Applies to CWS Radionuclides 261 218 32,667 83 61 83,675 67 20 118,776 44 14 380,988 455 313 616,106 Applies to surface water systems SWTR 2,471 515 82,801 Applies to CWS and Lead & Copper 10,346 6,538 873,624 595 161 205,532 NTNCWS 1,566 1,136 1,356,709 94 43 260,710 293 242 1 ,350,925 46 30 762,909 162 134 3,509,707 14 8 3,311,941 3,220 757 4,623,893 9 9 2,197,713 12,376 8,059 9,288,678 Acronyms: TTHM (VOC) = Total Trihalomethanes Other VOC = Regulated volatile organic contaminants (e.g., Benzene) other than TTHMs SOC = Synthetic organic chemicals (e.g., Atrazine) Other IOC = Regulated inorganic contaminants (e.g., arsenic) other than Copper, Lead, Nitrate, and Nitrite SWTR = Surface Water Treatment Rule TCR/T = Total Coliform Rule/ ------- Underground Injection Control program-inventory of wells Types of wells: Class I Class II Class III Class IV Class V Deep industrial waste disposal For oil and natural gas production Related to mineral recovery Banned, inject hazardous or radioactive waste above USDWs 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 hazardous waste wells Class I non- hazardous waste wells Class II 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 EPA R2 tribal EPA R6 tribal EPA R8 tribal EPA R9 tribal 122 Class III facilities (which may Class I contain multiple wells) 364 146,878 Class IV facilities I wells (which may contain multiple wells) 6 1 3 4 6 17 9 6 10 60 1 6 10 6 5 136 1 7 44 1 28 15 1 2 1 5 1 2 11 10 46 3 23 925 347 1,078 24,955 787 64 1 8,949 1,340 16,371 3,429 3,824 1,459 211 881 897 377 704 5,577 12 503 2,890 1 1 ,448 2 1,897 63 14 51 ,998 256 252 1 700 4,666 12 2,674 723 542 1 3 1 2 5 15 3 1 19 6 3 1 1 86 1 1 3 12 3 15 73 35 157 67 22 1,879 104 126 47 1 10 5,789 4 3 31 8,211 1 2 1 1 164 16,577 ------- |