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
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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
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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
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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
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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
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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
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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
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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
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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
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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,
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17: " 28,
9 IS!
~ g:"' '" '-p ' '
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i;
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•' " 1
10';' 2;
~ 11;
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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;
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1 ,879
104'
126-
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1.
10'
5,789.
4"!
3.
31V
"8,211
1
2
1
1
122
364
146,878
164
16,577
------- |