United States Office of Water EPA 816-K-01-004 Environmental Protection (4606) June 2001 Agency www.epa.gov/safewater f/EPA Factoids: Drinking Water and Ground Water Statistics for 2000 ------- There are approximately 170,000 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 170,000 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 (263 million) get their water from a community water system. There are more than 54,000 community water systems, but just seven percent of those systems (3,769) 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 the 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/getdata.html. Acronyms & Abbreviations 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 Information System/Federal version TNCWS: Transient Non-Community Water System TT: Treatment Technique [a drinking water treatment required by EPA or state rules] ------- FY2000 Drinking Water Factoids Public Water System Inventory data Active, current systems, from Safe Drinking Water Information System/Federal version (SDWIS/FED) OOQ4 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 31,688 14,149 4,458 3,416 353 5,148,696 19,931,399 25,854,061 96,709,145 116,282,810 59% 26% 8% 6% 1% 2% 8% 10% 37% 44% 17,598 2,839 96 23 3 2,440,352 2,795,510 480,243 620,719 579,937 86% 14% 0% 0% 0% 35% 40% 7% 9% 8% 90,391 2,632 130 54 3 7,521,276 2,617,526 731,889 1,329,043 735,001 97% 3% 0% 0% 0% 58% 20% 6% 10% 6% 54,064 263,926,111 100% 100% 20,559 6,916,761 100% 100% 93,210 12,934,735 100% 100% Total # systems 139,677 19,620 4,684 3,493 359 167,833 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 42,661 11,403 85,868,456 178,057,655 79% 21 % 33% 67% 19,738 821 5,984,416 932,345 96% 4% 87% 13% 91,298 1,912 12,017,370 917,365 98% 2% 93% 7% 54,064 263,926,111 100% 100% 20,559 6,916,761 100% 100% 93,210 12,934,735 100% 100% Total # systems 153,697 103,870,242 14,136 179,907,365 167,833 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 OOQ4 tables are "frozen" in early January 2001 Page 1 ------- FY2000 water system data--by State Key: Active, current systems, from SDWIS/FED OOQ4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from OOQ4 frozen violations table 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 442 208 995 445,954 45,579 105,725 575 38 89 4,934,311 25,090 8,500 726 114 359 2,258,368 12,597 17,789 799 216 672 4,356,171 149,965 158,447 3,283 1,290 3,573 34,084,987 584,333 1,111,711 830 166 1,105 3,835,139 54,404 221,455 599 627 2,479 2,648,571 125,787 80,540 2 595,000 240 96 215 605,342 24,192 53,476 2,009 1,083 3,515 15,655,773 285,318 297,517 1,673 276 623 6,560,186 79,736 116,078 121 14 6 1,262,878 7,307 2,450 1,153 167 612 2,575,716 46,942 80,213 747 258 1 ,075 907,653 55,155 125,908 1 ,801 438 3,562 10,947,281 157,030 395,476 916 759 3,162 4,119,623 492,393 364,396 917 35 127 2,418,352 14,364 14,287 467 89 156 4,294,353 31,569 11,494 1,207 213 400 5,162,586 82,274 95,925 513 224 891 8,640,236 70,774 160,019 511 572 2,732 4,614,127 160,236 141,310 399 455 1 ,249 611,531 72,718 203,762 1,472 1,826 9,052 7,044,085 504,705 1,108,745 953 646 6,753 3,798,571 100,705 393,760 1 ,439 235 1 ,027 4,715,214 79,873 149,546 1,228 117 140 2,876,508 87,810 26,393 1,645 597,258 702 4,967,901 1,199 2,288,754 1,687 4,664,583 8,146 35,781,031 2,101 4,110,998 3,705 2,854,898 2 595,000 551 683,010 6,607 16,238,608 2,572 6,756,000 141 1,272,635 1,932 2,702,871 2,080 1,088,716 5,801 11,499,787 4,837 4,976,412 1,079 2,447,003 712 4,337,416 1,820 5,340,785 1,628 8,871,029 3,815 4,915,673 2,103 888,011 12,350 8,657,535 8,352 4,293,036 2,701 4,944,633 1,485 2,990,711 1 ,395 250 294,842 302,416 455 247 1,455,370 3,512,531 850 349 909,925 1,378,829 1,573 114 1,491,970 3,172,613 7,030 1,116 9,386,226 26,394,805 1 ,636 465 564,841 3,546,157 3,636 69 508,833 2,346,065 2 595,000 546 5 225,785 457,225 6,545 62 14,009,538 2,229,070 2,361 211 1,639,424 5,116,576 122 19 1,183,658 88,977 1,776 156 1,448,927 1,253,944 1,991 89 832,503 256,213 5,118 683 3,252,037 8,247,750 4,715 122 2,705,505 2,270,907 748 331 773,298 1,673,705 322 390 329,847 4,007,569 1,737 83 3,267,000 2,073,785 1,446 182 2,017,089 6,853,940 3,738 77 818,033 4,097,640 2,027 76 469,260 418,751 12,047 303 3,328,383 5,329,152 8,239 113 2,878,930 1,414,106 2,454 247 1,796,583 3,148,050 1,477 8 2,880,102 110,609 77 17% 62,040 14% 21 4% 120,996 2% 104 14% 179,370 8% 68 9% 387,396 9% 181 6% 1,939,618 6% 43 5% 375,303 10% 67 11% 53,286 2% 0% 0% 18 8% 101,907 17% 83 4% 568,565 4% 52 3% 62,308 1% 8 7% 68,494 5% 64 6% 126,386 5% 114 15% 155,469 17% 258 14% 1,032,236 9% 124 14% 301,173 7% 93 10% 121,863 5% 18 4% 131,715 3% 108 9% 321,738 6% 125 24% 4,997,224 58% 35 7% 60,854 1% 86 22% 215,096 35% 89 6% 114,019 2% 24 3% 33,252 1% 133 9% 88,592 2% 51 4% 257,681 9% Page 2 ------- FY2000 water system data-by State, cont. Key: Active, current systems, from SDWIS/FED OOQ4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from OOQ4 frozen violations table 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 645 225 1,153 2,716,262 44,769 165,756 2,374 658 4,479 5,794,107 193,761 412,002 321 29 200 555,123 3,958 17,152 619 178 532 1,392,476 43,190 66,639 674 446 1 ,036 766,072 88,587 207,906 602 940 2,737 7,678,147 279,033 351,179 616 155 503 1,489,113 34,508 208,412 292 100 283 1,579,690 40,380 59,527 2,868 761 7,001 17,690,198 358,726 856,655 1,429 1,106 3,404 10,142,141 275,606 543,094 1,171 123 438 3,434,926 18,645 43,495 884 331 1 ,430 3,095,044 69,529 220,176 2,200 1,266 6,923 10,518,120 509,453 864,529 83 71 325 950,151 24,566 53,135 692 221 614 3,303,073 75,407 55,421 474 30 214 631,186 3,924 36,049 633 60 480 5,082,640 30,592 54,130 4,574 862 1 ,429 20,920,423 339,537 288,783 430 64 459 2,471,221 47,314 82,361 1,326 623 1,827 6,496,739 285,368 944,111 438 215 694 502,741 39,473 716,196 2,300 316 1,595 5,060,995 263,654 301,376 1,140 1,020 9,564 3,645,732 210,193 725,062 583 196 635 1,810,721 101,298 42,424 272 86 378 410,396 16,240 75,279 2,023 2,926,787 7,511 6,399,870 550 576,233 1,329 1,502,305 2,156 1,062,565 4,279 8,308,359 1,274 1,732,033 675 1,679,597 10,630 18,905,579 5,939 10,960,841 1,732 3,497,066 2,645 3,384,749 10,389 11,892,102 479 1,027,852 1,527 3,433,901 718 671,159 1,173 5,167,362 6,865 21,548,743 953 2,600,896 3,776 7,726,218 1,347 1,258,410 4,211 5,626,025 11,724 4,580,987 1,414 1 ,954,443 736 501,915 1,801 222 2,064,878 861,909 6,955 556 1,942,355 4,457,515 469 81 222,900 353,333 1 ,300 29 946,096 556,209 2,102 54 567,170 495,395 4,182 97 3,028,425 5,279,934 1 ,222 52 1,523,385 208,648 614 61 271,798 1,407,799 9,554 1,076 5,488,212 13,417,367 5,595 344 4,128,314 6,832,527 1,016 716 714,820 2,782,246 2,361 284 905,085 2,479,664 9,825 564 2,870,279 9,021,823 454 25 203,572 824,280 1 ,282 245 785,769 2,648,132 584 134 288,745 382,414 719 454 1,388,694 3,778,668 5,700 1,165 7,253,194 14,295,549 847 106 960,145 1,640,751 3,416 360 1,616,680 6,109,538 1,214 133 747,583 510,827 3,923 288 2,708,630 2,917,395 1 1 ,679 45 2,919,649 1,661,338 1 ,036 378 340,038 1,614,405 621 115 182,251 319,664 45 7% 103,982 4% 166 7% 188,836 3% 31 10% 22,058 4% 197 32% 267,605 19% 125 19% 59,799 8% 41 7% 1,172,024 15% 85 14% 96,959 7% 17 6% 19,579 1% 63 2% 2,076,220 12% 33 2% 83,733 1% 44 4% 195,553 6% 177 20% 186,658 6% 105 5% 417,400 4% 6 7% 60,118 6% 81 12% 751 ,300 23% 45 9% 15,012 2% 29 5% 142,167 3% 182 4% 439,618 2% 41 10% 148,073 6% 188 14% 122,363 2% 56 13% 35,640 7% 272 12% 1 ,240,497 25% 96 8% 551,949 15% 37 6% 103,956 6% 15 6% 13,317 3% 52,662 20,244 92,902 165,808 152,455 13,353 4,221 258,105,953 6,748,567 12,835,771 102,536,576 175,153,715 20,390,997 PageS ------- FY2000 water system data-Tribal systems Key: Active, current systems, from SDWIS/FED OOQ4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from OOQ4 frozen violations table 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 4 1 2,929 300 14 3 23 15,893 1,225 3,360 80 34 11 34,762 28,762 646 41 8 20 63,536 966 1 ,329 9 4 6,173 525 107 9 1 66,660 4,511 26 406 21 71 222,190 10,557 65,184 86 13 5 24,586 4,525 485 6 850 5 3,229 40 20,478 125 64,170 69 65,831 13 6,698 117 71,197 498 297,931 104 29,596 6 850 4 1 1,229 2,000 37 3 15,957 4,521 123 2 63,681 489 67 2 57,305 8,526 12 1 6,200 498 100 17 50,609 20,588 462 36 259,853 38,078 99 5 25,340 4,256 0% 0% 0% 0% 0% 0% 7 9% 417 1% 14 34% 24,768 39% 2 22% 3,298 53% 10 9% 4,493 7% 11 3% 5,428 2% 11 13% 3,866 16% 748 90 139 977 910 67 55 436,849 50,606 72,525 481,024 78,956 42,270 FY2000 water system data-Commonwealths and Territories Active, current systems, from SDWIS/FED OOQ4 frozen inventory table Health-based (Treatment Technique & Maximum Contaminant Level) violations, from OOQ4 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 30 6 7 50,769 3,039 620 438 46 6 5,059,931 38,836 2,215 16 2 12,060 1,163 138 169 156 99,021 73,780 23,604 22 52,458 12 109,840 43 54,428 490 5,100,982 18 13,223 463 196,405 12 10 49,618 2,840 8 4 20,990 88,850 43 54,428 263 227 722,633 4,378,349 2 16 400 12,823 4 459 4,573 191,832 14 64% 6,045 12% 0% 0% 0% 0% 313 71% 4,197,044 83% 0% 0% 9 7% 1,009 1% 654 225 169 1,048 332 716 336 5,383,309 117,588 26,439 852,642 4,674,694 4,204,098 Page 4 ------- 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 2000 1999 1998 1997 1996 1995 1994 1993 91% 91% 89% 87% 86% 84% 83% 79% By region 10 2000 1999 1998 1997 1996 1995 1994 1993 62% 75% 64% 62% 60% 57% 57% 60% 76% 61% 60% 55% 53% 52% 55% 56% 97% 98% 97% 97% 92% 91% 87% 85% 95% 95% 95% 93% 93% 92% 90% 90% 95% 95% 95% 92% 92% 92% 88% 77% 96% 95% 95% 93% 94% 89% 87% 92% 95% 95% 94% 95% 95% 95% 94% 93% 94% 94% 93% 91% 92% 90% 91% 92% 94% 97% 95% 95% 91% 88% 90% 69% 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) and Treatment Technique (TT) violations. Population data are based on active, current water systems 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. Page 5 ------- CWS violations reported byFY FY2000 data from SDWIS/FED OOQ4 frozen tables, except for Chem M/Rs which are from 01Q1 FY1999 data from SDWIS/FED 99Q4 frozen tables, except for Chem M/Rs which are from OOQ1 FY1998 data from SDWIS/FED 98Q4 frozen tables, except for Chem M/Rs which are from 99Q1 FY1997 and earlier data from SDWIS 98Q1 frozen tables Number of violations FY MCL TT MIR Other* Total 2000 1999 1998 1997 1996 1995 4,753 5,528 6,340 5,804 7,391 7,147 3,045 2,246 2,520 2,743 3,078 3,766 52,013 58,384 54,440 64,385 121,253 139,072 10,650 1,038 1,614 1,471 1,151 1,983 70,461 67,196 64,914 74,403 132,873 151,968 Number of systems in violation Population affected by system size Number of violations MCL Very small Small Medium Large Very large M/R Number of systems in violation MCL TT M/R Very small Small Medium Large Very large Population affected MCL M/R Very small Small Medium Large Very large Other Other Other FY MCL 2000 1999 1998 1997 1996 1995 3,160 3,321 3,746 3,721 4,411 4,652 TT 1,677 1,057 1,105 1,109 1,329 1,795 M/R 13,781 9,447 10,002 10,949 13,039 14,584 Other* 8,948 627 899 860 738 959 Total 21 ,359 12,151 13,024 14,016 16,418 18,230 FY MCL 2000 1999 1998 1997 1996 1995 11,946,983 11,079,343 10,393,015 13,848,094 16,040,225 23,547,689 TT 15,391,464 15,854,722 18,485,545 22,059,698 22,683,315 26,409,050 M/R 34,193,873 19,868,126 28,313,863 27,224,547 32,529,745 40,672,345 Other* 13,882,763 2,529,718 2,369,301 3,879,160 4,671,792 8,707,791 Total 62,928,310 38,161,938 48,945,871 58,086,370 63,686,726 73,201,326 Total 3,046 1,122 318 251 16 1,604 850 249 294 48 40,345 7,406 2,041 2,039 182 7,973 1,996 447 219 15 52,968 11,374 3,055 2,803 261 Total 2,001 710 251 186 12 944 435 124 152 22 10,041 2,506 704 487 43 6,592 1,738 412 193 13 14,868 4,346 1,206 863 76 Total 324,588 999,776 1,574,032 4,449,100 4,599,487 161,408 600,020 740,753 4,790,097 9,099,186 1,438,809 3,293,589 4,037,524 14,365,948 11,058,003 949,875 2,309,815 2,350,790 4,693,943 3,578,340 2,196,522 5,839,126 7,035,731 24,194,288 23,662,649 1 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. Page 6 ------- NTNCWS violations reported FY2000 data from SDWIS/FED OOQ4 frozen tables, except for Chem M/Rs, which are from 01Q1 FY1999 data from SDWIS/FED 99Q4 frozen tables, except for Chem M/Rs which are from OOQ1 FY1998 data from SDWIS/FED 98Q4 frozen tables, except for Chem M/Rs which are from 99Q1 FY1997 and earlier data from SDWIS/FED 98Q1 frozen tables Number of violations FY MCL TT M/R Other Total 2000 1999 1998 1997 1996 1995 1,245 1,349 1,322 1,349 1,792 1,672 837 225 165 202 405 659 23,085 25,796 26,043 28,249 53,345 54,543 201 120 255 159 189 255 25,368 27,490 27,785 29,959 55,731 57,129 Number of systems FY MCL 2000 1999 1998 1997 1996 1995 in violation M/R Population affected FY MCL 2000 1999 1998 1997 1996 1995 M/R Other Other Total 924 958 945 985 1,281 1,244 580 178 103 98 252 416 5,508 3,629 3,942 4,623 6,066 6,275 162 88 157 105 134 166 6,432 4,398 4,672 5,355 6,945 7,272 Total 276,448 292,367 232,755 280,021 380,187 392,311 217,596 53,500 23,963 32,041 93,138 150,148 1 ,763,388 848,516 994,786 1 ,241 ,807 1,435,181 1,684,183 36,519 34,947 47,772 33,877 30,201 49,236 2,077,863 1,112,853 1,187,783 1 ,483,754 1 ,736,465 2,010,395 TNCWS violations reported Number of violations FY MCL TT 2000 1999 1998 1997 1996 1995 M/R Number of systems in violation FY MCL TT 2000 1999 1998 1997 1996 1995 M/R Population affected FY MCL 2000 1999 1998 1997 1996 1995 M/R Other Other Other Total 4,407 4,956 5,201 5,408 5,934 4,879 314 226 284 379 564 492 35,280 36,266 28,116 32,581 55,420 48,843 908 752 2,159 1,794 1,810 2,082 40,909 42,200 35,760 40,162 63,728 56,296 Total 3,634 3,876 3,799 4,070 4,539 3,857 182 140 90 128 150 153 17,740 19,694 15,997 17,497 25,614 25,075 652 498 1,115 975 1,064 1,161 20,345 22,233 18,771 20,532 28,520 27,689 Total 507,741 646,469 481 ,642 539,292 625,342 671 ,739 46,201 42,582 58,801 62,557 48,098 65,295 2,570,999 2,217,212 2,102,061 2,230,009 3,411,919 3,219,663 78,494 63,264 143,464 128,471 115,250 128,290 2,983,920 2,706,984 2,458,001 2,651,801 3,731 ,987 3,622,946 * 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. Page 7 ------- FY2000 MCL and TT violations reported From SDW1S/FED OOQ4 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 7,481 5,824 640,751 1,066 766 1 ,008,878 284 234 1 ,480,350 197 155 3,712,812 11 9 3,726,152 9,039 6,988 10,568,943 Organics: Applies to CWS and NTNCWS TTHM (VOC) Other VOC SOC 2 2 146 47 28 3,632 8 5 790 6 3 2,890 8 8 16,647 5 4 4,579 4 3 23,579 20 10 206,809 5 4 94,325 1 1 14,390 2 1 535,335 2 1 180,000 28 15 209,845 66 44 673,518 16 11 199,759 Inorganics: Applies to CWS and NTNCWS Nitrates Other IOC 624 377 44,431 67 43 8,615 157 67 87,287 15 8 10,549 13 7 30,444 8 7 35,924 9 5 142,829 2 2 42,058 1 1 158,000 804 457 462,991 92 60 97,146 Applies to CWS Radionuclides 166 89 18,685 Applies to surface water SWTR 1,236 518 91,012 130 72 100,322 systems 588 235 328,257 25 18 98,611 180 84 508,909 25 16 356,727 197 97 3,163,152 346 195 574,345 33 11 6,729,982 2,234 945 10,821,312 Applies to CWS and NTNCWS Lead & Copper 1,381 1,078 158,200 390 320 388,147 76 51 285,072 100 84 2,666,466 15 15 4,577,567 1,962 1,548 8,075,452 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/ Page 8 ------- FY2000 Monitoring/Reporting violations reported From SDW1S/FED OOQ4 frozen violations table (except for Chem M/Rs) Key: Chem M/R data are from SDWIS/FED 01 Q1 frozen violations table TCR/T Very small Small 25-500 501-3,300 Applies to all water systems 33,842 2,661 19,739 1,723 1,991,992 2,127,499 Medium 3,301-10,000 458 324 1 ,868,571 Large 10,001-100,000 220 172 4,965,205 # violations # systems Pop. affected Very Large >1 00,000 Total 20 10 3,556,204 37,201 21,968 14,509,471 Organics: Applies to CWS and NTNCWS TTHM (VOC) Other VOC SOC 12 9 1,656 21 ,502 894 130,285 6,399 271 36,842 6 6 14,138 3,479 164 195,663 799 68 77,275 2 2 8,125 699 32 167,757 74 17 86,924 50 43 1,101,985 973 44 1 ,081 ,925 105 20 528,272 1 1 107,593 8 6 2,550,835 70 5 908,835 71 61 1 ,233,497 26,661 1,140 4,126,465 7,447 381 1,638,148 Inorganics: Applies to CWS and NTNCWS Nitrates Other IOC 13,137 10,436 999,61 1 4,474 490 68,002 670 502 557,144 685 108 138,574 188 83 487,136 187 29 161,068 75 37 1,114,630 42 14 432,866 21 4 891,419 6 3 1,412,332 14,091 11,062 4,049,940 5,394 644 2,212,842 Applies to CWS Radionuclides 33,842 19,739 1 ,991 ,992 2,661 1,723 2,127,499 458 324 1 ,868,571 220 172 4,965,205 20 10 3,556,204 37,201 21,968 14,509,471 Applies to surface water systems SWTR 1,868 445 71 ,431 439 144 191,121 110 50 270,656 70 40 1 ,380,844 33 11 3,419,872 2,520 690 5,333,924 Applies to CWS and NTNCWS Lead & Copper 1 1 ,281 8,424 1,099,127 1,794 1,396 1 ,692,760 414 326 1 ,857,371 272 209 6,448,697 25 20 4,796,504 13,786 10,375 15,894,459 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/ Page 9 ------- 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 III Class I Class I non- facilities hazardous hazardous Class II wells (which may Class I waste wells waste wells contain multiple wells) Class IV facilities I wells (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 EPA R2 tribal EPA R6 tribal EPA R8 tribal EPA R9 tribal 6- 6: 10. 6 ' ' 5; ...... ....... ^ ^, 3 """"i .......... _. ...... ..._,. 6: 44, ; " ' ~ 1 i 17: " 28, 9 IS! ~ g:"' '" '-p ' ' :' " '"""" 2; i; ... ........ ^. •' " 1 10';' 2; ~ 11; ""id; 60: 46! 3': ' 23: 1 925: 347 1,078; '24,955; 787: 64; ' "' 1 8,949; 1,340: 16,371. 3,429; 3,824. 1,459. 21 1 i 881 897. 377 704 5,577: 12: 503! 2,890 11,448: 2 i,897i 63i 14; '51,998; 256: 252:' 1 700! 4,666' 12. 2,674; 723 : '542l 1: 3-' 1; 2< 5r 15. 3: 1 , 19; 6. 3 1 ! 1- .'. 86 ; 1 ; 1 : Si 12 3^ 15 73; 35! 157; 67; .22! 1 ,879 104' 126- "'""47" 1. 10' 5,789. 4"! 3. 31V "8,211 1 2 1 1 122 364 146,878 164 16,577 ------- |