Protection
FACTOIDS :
Drinking Water
and
Ground Water
Statistics
for 2003
-------
Office of Ground Water and
Drinking Water (4606M)
EPA816-K-03-001
www. epa. gov/safewater
January 2004
Printed on Recycled Paper
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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 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 at www.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]
-------
FY2003 Drinking Water Factoids
Public Water System Inventory data
Active, current systems, from Safe Drinking Water Information System/Federal version (SDWIS/FED) 03Q4 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
30,417 14,394 4,686 3,505 361
5,010,834 20,261,508 27,201,137 98,706,485 122,149,436
57% 27% 9% 7% 1%
2% 7% 10% 36% 45%
16,785 2,786 97 16 2
2,327,575 2,772,334 506,124 412,463 279,846
85% 14% 0% 0% 0%
37% 44% 8% 7% 4%
85,366 2,657 96 29 4
7,315,647 2,602,706 528,624 619,248 12,269,000
97% 3% 0% 0% 0%
31% 11% 2% 3% 53%
53,363
273,329,400
100%
100%
19,686
6,298,342
100%
100%
88,152
23,335,225
100%
100%
Total # syster
132,568
19,837
4,879
3,550
367
161,201
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
41,499 11,864
86,348,074 186,981,326
78% 22%
32% 68%
18,908 778
5,568,192 730,150
96% 4%
88% 12%
86,061 2,091
10,527,089 12,808,136
98% 2%
45% 55%
53,363
273,329,400
100%
100%
19,686
6,298,342
100%
100%
88,152
23,335,225
100%
100%
Total # syster
146,468
102,443,355
14,733
200,519,612
161,201
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 03Q4 tables were "frozen" in early January 2004
-------
FY2003 water system data--by State
Active, current systems, from SDWIS/FED 03Q4 frozen inventory table
Health-based (Treatment Technique & Maximum Contaminant Level) violations
CWS NTNCWS TNCWS Total
Key:
from 03Q4 froze
Ground
# systems
pop. served
T violations table
Surface
CWSs w/ reported
health -based
violations
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
434 213 936
461,264 43,412 91,513
607 32 72
5,167,519 19,448 7,399
730 61 329
2,482,867 12,622 17,365
799 210 644
4,766,531 132,626 132,193
3,140 1,413 3,017
36,207,653 495,441 11,031,005
836 170 1,004
4,923,405 91,311 264,435
573 667 1,754
2,660,903 129,913 60,447
2
595,000
226 102 176
790,178 25,247 57,545
1,925 1,045 3,433
16,281,037 263,623 298,672
1,678 251 559
7,119,376 72,646 88,806
116 9 4
1,285,174 6,385 500
1,140 146 688
2,526,314 45,068 88,128
748 245 1,048
924,721 52,667 114,320
1,797 416 3,370
11,300,507 150,302 374,357
853 715 2,928
4,499,532 210,497 417,480
912 58 102
2,581 ,726 23,945 4,054
424 57 138
4,588,463 21,968 11,453
1,131 185 323
4,878,378 72,684 74,731
517 250 920
8,955,179 71,673 142,832
501 569 2,687
4,502,328 162,742 167,496
395 373 1,211
615,264 72,052 197,391
1,447 1,689 8,986
7,197,342 471,246 1,063,724
963 565 6,257
4,040,822 84,158 490,353
1,456 254 1,001
4,864,516 79,159 133,877
1,168 94 116
3,007,045 81 ,400 24,648
1,583
596,189
711
5,194,366
1,120
2,512,854
1,653
5,031 ,350
7,570
47,734,099
2,010
5,279,151
2,994
2,851,263
2
595,000
504
872,970
6,403
16,843,332
2,488
7,280,828
129
1 ,292,059
1,974
2,659,510
2,041
1,091,708
5,583
11,825,166
4,496
5,127,509
1,072
2,609,725
619
4,621,884
1,639
5,025,793
1,687
9,169,684
3,757
4,832,566
1,979
884,707
12,122
8,732,312
7,785
4,615,333
2,711
5,077,552
1,378
3,113,093
1,337 246
294,193 301,996
417 294
1,476,656 3,717,710
705 415
920,088 1,592,766
1,442 211
1,440,327 3,591,023
6,488 1 ,082
10,688,260 37,045,839
1 ,569 441
782,198 4,496,953
2,924 70
501,499 2,349,764
2
595,000
501 3
596,840 276,130
6,328 75
14,222,761 2,620,571
2,268 220
1,599,694 5,681,134
113 16
1,169,290 122,769
1,814 160
1,473,634 1,185,876
1,969 72
839,838 251,870
4,860 723
3,297,942 8,527,224
4,364 132
2,822,028 2,305,481
745 327
830,695 1 ,779,030
260 359
364,993 4,256,891
1,556 83
3,022,291 2,003,502
1,504 183
2,157,850 7,011,834
3,661 96
874,747 3,957,819
1,900 79
454,721 429,986
11,815 307
3,203,122 5,529,190
7,675 110
3,184,810 1,430,523
2,475 236
1,785,200 3,292,352
1,374 4
2,789,142 323,951
54 12%
39,169 8%
37 6%
297,032 6%
84 12%
245,181 10%
79 10%
520,647 11%
58 2%
183,651 1%
50 6%
519,279 11%
65 11%
46,143 2%
0%
0%
15 7%
6,401 1%
116 6%
1,501,239 9%
85 5%
496,033 7%
5 4%
55,326 4%
63 6%
122,070 5%
74 10%
100,641 11%
163 9%
744,546 7%
94 11%
146,494 3%
84 9%
287,363 11%
23 5%
228,262 5%
107 9%
465,747 10%
88 17%
1,292,000 14%
29 6%
79,550 2%
74 19%
96,005 16%
54 4%
106,298 1%
20 2%
70,585 2%
153 11%
170,771 4%
46 4%
159,509 5%
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FY2003 water system data--by State,
Active, current systems, from SDWIS/FED 03Q4 frozen inventory table
Health-based (Treatment Technique & Maximum Contaminant Level) violations
CWS NTNCWS TNCWS Total
( Key:
from 03Q4 froze
Ground
# systems
Pop served
T violations table CWSs w/ reported
health -based
Surface violations
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
667 225 1,129
659,667 59,886 176,587
2,430 576 4,492
6,431,967 159,401 377,666
321 28 179
551,709 4,102 15,523
610 181 586
1,424,246 42,530 113,001
688 441 1 ,054
794,419 91,054 220,026
607 870 2,644
7,891,239 217,056 381,246
657 152 509
1,602,714 40,246 187,878
256 107 260
1,941,253 34,981 28,731
2,849 759 6,564
17,784,525 337,668 2,917,223
1,334 1,018 3,221
10,025,325 249,361 490,709
1,151 110 376
3,429,060 18,197 28,498
883 332 1,454
2,867,570 76,404 222,081
2,162 1,224 6,627
10,399,770 522,640 843,251
83 74 322
1,273,301 26,827 56,259
655 185 575
3,343,194 61,982 35,559
468 30 195
653,374 12,166 26,706
675 50 435
5,308,927 30,945 59,727
4,516 788 1,245
22,148,772 322,457 248,086
454 61 438
3,688,604 42,442 74,740
1,309 618 1,309
5,946,179 274,867 218,251
438 227 695
497,717 41,013 132,407
2,282 309 1,559
5,389,076 253,867 261 ,297
1,096 937 9,389
3,824,455 196,102 694,934
547 169 560
1,425,835 55,375 35,435
279 87 381
437,627 19,379 75,824
2,021
896,140
7,498
6,969,034
528
571 ,334
1,377
1 ,579,777
2,183
1,105,499
4,121
8,489,541
1,318
1 ,830,838
623
2,004,965
10,172
21,039,416
5,573
10,765,395
1,637
3,475,755
2,669
3,166,055
10,013
11,765,661
479
1 ,356,387
1,415
3,440,735
693
692,246
1,160
5,399,599
6,549
22,719,315
953
3,805,786
3,236
6,439,297
1,360
671,137
4,150
5,904,240
1 1 ,422
4,715,491
1,276
1,516,645
747
532,830
1,803 218
502,724 393,416
6,830 668
1,963,876 5,005,158
444 84
264,665 306,669
1,302 75
803,980 775,797
2,127 56
582,034 523,465
4,019 102
3,128,541 5,361,000
1,242 76
1,595,947 234,891
590 33
303,722 1,701,243
8,983 1,189
5,566,889 15,472,527
5,148 425
3,430,287 7,335,108
912 725
675,542 2,800,213
2,365 304
828,976 2,337,079
9,433 580
2,825,638 8,940,023
454 25
212,598 1,143,789
1,202 213
600,670 2,840,065
560 133
295,907 396,339
602 558
1,450,421 3,949,178
5,379 1,170
6,728,199 15,991,116
828 125
774,271 3,031,515
2,846 390
847,878 5,591,419
1,223 137
310,621 360,516
3,884 266
2,876,867 3,027,373
1 1 ,373 49
2,969,519 1,745,972
897 379
310,377 1,206,268
634 113
189,996 342,834
77 12%
45,091 7%
256 11%
348,084 5%
11 3%
54,280 10%
170 28%
266,652 19%
79 11%
72,002 9%
42 7%
933,634 12%
73 11%
94,735 6%
20 8%
20,874 1%
129 5%
9,313,726 52%
83 6%
623,763 6%
120 10%
1 ,033,290 30%
142 16%
179,177 6%
104 5%
335,471 3%
14 17%
116,548 9%
53 8%
274,515 8%
31 7%
31 ,526 5%
40 6%
433,077 8%
198 4%
597,176 3%
51 11%
162,475 4%
172 13%
655,213 11%
60 14%
34,062 7%
238 10%
330,289 6%
52 5%
354,355 9%
34 6%
73,844 5%
17 6%
9,164 2%
51,935 19,347 87,901 159,183 145,144 14,039 3,986
266,963,569 6,083,183 23,276,369 100,832,964 195,490,157 24,372,965
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FY2003 water system data-Tribal sys
Active, current systems, from SDWIS/FED 03Q4 frozen inventory table
Key:
# systems
Pop served
Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 03Q4 frozen violations table
Region CWS NTNCWS TNCWS Total Ground Surface
CWSs w/ reported
health -based
violations
01
02
04
05
06
07
08
09
10
Navajo
Nation
1 2 3
120 60 670
8 3
7,650 300
14 2 18
15,837 1,107 2,035
80 29 9
82,425 25,415 1,388
45 16 16
56,834 11,050 843
9 4
6,173 525
107 7 4
79,476 4,620 360
255 37 40
215,074 42,582 4,971
77 15 8
40,970 7,369 13,921
154 3 6
180,090 3,969 8,834
6
850
11
7,950
34
18,979
118
109,228
77
68,727
13
6,698
118
84,456
332
262,627
100
62,260
163
192,893
6
850
10 1
5,150 2,800
33 1
9,479 9,500
116 2
108,739 489
73 4
65,372 3,355
12 1
6,200 498
99 19
57,714 26,742
309 23
237,646 24,981
91 9
40,455 21 ,805
153 10
166,311 26,582
0%
0%
0%
0%
0%
0%
3 4%
1,189 1%
9 20%
14,688 26%
0%
0%
12 11%
7,514 9%
46 18%
40,956 19%
3 4%
710 2%
5 3%
33,026 18%
750 111 111 972 902 70 78
684,649 96,172 33,847 697,916 116,752 98,083
FY2003 water system data-Commonwealths and Territories
Active, current systems, from SDWIS/FED 03Q4 frozen inventory table Key:
Health-based (Treatment Technique & Maximum Contaminant Level) violations, from 03Q4 frozen violations table
# systems |
Pop served
Amer.
Samoa
Guam
N.
Marianas
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
79 32 17
99,923 8,588 2,045
453 55 6
5,317,576 45,126 2,339
16 2
12,060 1,163
98 137 117
90,095 63,340 20,625
22
52,458
12
109,840
128
110,556
514
5,365,041
18
13,223
352
1 74,060
12 10
49,618 2,840
8 4
20,990 88,850
124 4
44,074 66,482
273 241
792,845 4,572,196
2 16
400 12,823
3 349
4,548 169,512
14 64%
6,045 12%
0%
0%
0%
0%
281 62%
4,009,933 75%
0%
0%
4 4%
300 0%
678 228 140 1,046 422 624 299
5,681,182 118,987 25,009 912,475 4,912,703 4,016,278
-------
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 overtime 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
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
90%
94%
91%
91%
91%
89%
87%
86%
84%
83%
79%
89%
88%
65%
62%
75%
64%
62%
60%
57%
57%
60%
54%
81%
77%
76%
61%
60%
55%
53%
52%
55%
56%
95%
98%
98%
97%
98%
97%
97%
92%
91%
87%
85%
93%
96%
95%
95%
95%
95%
93%
93%
92%
90%
90%
95%
94%
92%
95%
95%
95%
92%
92%
92%
88%
77%
93%
93%
96%
96%
95%
95%
93%
94%
88%
87%
92%
93%
95%
90%
95%
95%
94%
95%
95%
95%
94%
93%
92%
97%
94%
94%
94%
93%
91%
92%
90%
91%
92%
98%
99%
97%
94%
97%
95%
95%
91%
88%
90%
69%
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 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 Standards 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
2003
2002
90%
88%
59%
81%
97%
98%
94%
96%
95%
94%
96%
94%
94%
95%
93%
97%
98%
99%
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
2003 92%
2002 92%
86%
86%
CT
ME
MA
NH
Rl
VT
90%
89%
NJ
NY
PR
VI
93%
92%
DE
DC
MD
PA
VA
WV
93%
94%
AL
FL
GA
KY
MS
NC
SC
TN
94%
93%
IL
IN
Ml
MN
OH
Wl
93%
93%
AR
LA
NM
OK
TX
89%
87%
IA
KS
MO
NE
92%
92%
CO
MT
ND
SD
UT
WY
95%
95%
AZ
CA
HI
NV
AS
GU
MP
PW
89%
87%
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 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 Standards 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 FY2003: CWSs w/ surface water sources serving 10,000 or more people:
* Interim Enhanced Surface Water Treatment Rule
* Disinfection By-Products (DBP) Rule for CWSs that disinfect
% Population served
By EPA region
Nationally 1 23456789 10
2003 | 96% | | 98% | 79% | 98% | 98% | 100%| 94% | 97% | 99% | 100%| 100%|
% SystemsThe 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 23456789 10
2003 I 93% I
| 96% |
CT
ME
MA
NH
Rl
VT
76% |
NJ
NY
PR
VI
93% |
DE
DC
MD
PA
VA
WV
94% |
AL
FL
GA
KY
MS
NC
SC
TN
99% |
IL
IN
Ml
MN
OH
Wl
86% |
AR
LA
NM
OK
TX
92% |
IA
KS
MO
NE
98%
CO
MT
ND
SD
UT
WY
| 100%|
AZ
CA
HI
NV
AS
GU
MP
PW
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, current water systems serving 10,000+ people
For FY2003, population and violation data are from SDWIS/FED 03Q4 frozen tables.
-------
CWS violations reported
by FY
FY2003 data from SDW1S/FED 03Q4 frozen tables, except for Chem M/Rs which will be from 04Q1
FY2002 data from SDWIS/FED 02Q4 frozen tables, except for Chem M/Rs which are from 03Q1
FY2001 data from SDWIS/FED 01Q4 frozen tables, except for Chem M/Rs which are from 02Q1
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
Number of violations
FY MCL MRDL TT M/R Other* Total
2003
2002
2001
2000
1999
4,884
4,693
5,231
4,754
5,497
1 2,299
2,408
2,493
3,053
2,202
68,840
80,635
63,476
51,912
56,307
12,671
1 1 ,759
1 1 ,455
10,634
1,025
88,695
99,495
82,655
70,353
65,031
Number of systems in violation
FY MCL MRDL
M/R
Other*
Population affected
FY MCL MRDL
2003
2002
2001
2000
1999
M/R
Other*
by system size
Number of violations
MCL MRDL
Very small I 2,874
M/R
Other
Total
2003
2002
2001
2000
1999
3,069
3,193
3,241
3,161
3,298
1 1,458
1,482
1,572
1,682
1,046
12,880
12,430
13,639
13,736
9,259
8,109
8,386
8,631
8,937
618
20,343
20,232
20,996
21 ,308
1 1 ,946
Total
16,082,938
8,800,095
11,165,733
1 1 ,947,655
1 1 ,078,268
2,250 16,969,087
9,245,467
15,474,893
15,394,154
15,854,547
49,812,213
32,503,639
52,618,908
34,186,550
19,829,544
12,726,332
17,809,478
25,780,359
13,881,076
2,528,920
81 ,672,086
56,644,512
77,845,089
62,921 ,077
38,124,231
Total
Small
Medium
Large
Very large
Very small
Small
Medium
Large
Very large
Very small
Small
Medium
Large
Very large
1 ,036 1
410
534
30
Number of systems in
MCL MRDL
1,817
639 1
295
304
14
Population affected
MCL MRDL
284,244
910,482 2,250
1,718,508
7,283,576
5,886,128
598
223
308
35
violation
TT
824
370
111
139
14
TT
141,039
521,952
663,540
4,193,271
11,449,285
1 1 ,206
3,263
3,294
772
M/R
8,939
2,618
702
557
64
M/R
1,310,499
3,526,584
4,076,428
15,346,206
25,552,496
2,513
491
261
12
15,354
4,387
4,397
849
Other Total
5,578
1,908
390
221
12
13,349
4,605
1,274
1,023
92
Other Total
873,787
2,478,604
2,229,986
5,335,869
1 ,808,086
2,058,386
6,213,500
7,418,331
27,114,748
38,867,121
* 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.
FY2003 compliance information includes new DBP and IESWTR rules
-------
NTNCWS violations reported by FY
FY2003 data from SDW1S/FED 03Q4 frozen tables,
FY2002 data from SDW1S/FED 02Q4 frozen tables,
FY2001 data from SDWIS/FED 01Q4 frozen tables,
FY2000 data from SDWIS/FED OOQ4 frozen tables,
FY1999 data from SDWIS/FED 99Q4 frozen tables,
Number of violations
FY MCL MRDL TT M/R
except for Chem M/Rs which will be from 04Q1
except for Chem M/Rs which are from 03Q1
except for Chem M/Rs, which are from 02Q1
except for Chem M/Rs, which are from 01Q1
except for Chem M/Rs which are from OOQ1
Other
Number of systems in violation
FY MCL MRDL 1
M/R
Other
Population affected
FY MCL MRDL
2003
2002
2001
2000
1999
M/R
Other
Total
2003
2002
2001
2000
1999
1,391
1,336
1,258
1,243
1,369
680
720
696
834
272
32,578
38,805
32,847
23,138
27,487
503
227
305
210
145
35,152
41,088
35,106
25,425
29,273
Total
2003
2002
2001
2000
1999
1,029
1,005
921
925
995
495
529
515
580
190
4,758
5,322
5,368
5,513
3,852
317
155
213
169
101
5,803
6,267
6,241
6,445
4,650
Total
266,522
302,322
359,556
276,758
373,845
140,053
165,522
222,120
216,701
56,710
1,434,673
1,566,034
1,616,708
1,759,909
883,464
85,026
57,016
82,910
37,941
36,223
1,748,569
1,897,686
2,012,850
2,075,184
1,229,143
TNCWS violations reported by FY
Number of violations
FY MCL MRDL
2003
2002
2001
2000
1999
M/R
Number of systems in violation
FY MCL MRDL 1
M/R
Population affected
FY MCL MRDL
2003
2002
2001
2000
1999
M/R
Other
Other
Other
Total
5,082
4,837
4,596
4,408
4,967
573
626
677
309
223
35,005
39,451
38,794
35,328
36,651
8,640
2,339
1,467
915
740
49,300
47,253
45,534
40,960
42,581
Total
2003
2002
2001
2000
1999
4,071
3,858
3,687
3,632
3,862
245
249
256
177
139
17,439
19,191
19,623
17,725
19,658
3,685
1,142
826
656
494
21,360
22,193
22,358
20,325
22,185
Total
541 ,950
504,967
558,780
506,759
566,066
40,518
60,692
46,987
44,406
39,547
2,160,890
2,154,654
2,385,309
2,568,632
2,220,821
340,950
137,795
118,847
78,759
62,786
2,649,642
2,552,563
2,792,810
2,979,498
2,628,376
* 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.
FY2003 compliance information includes new DBP and IESWTR rules
-------
FY2003 MCL, MRDL and TT violations reported
From SDW1S/FED 03Q4 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
7,614
5,945
623,663
917
726
965,827
292
253
1,484,249
223
181
4,309,612
10
6
2,220,797
9,056
7,111
9,604,148
Applies to surface water systems serving >= 10K people that disinfect ( TNCWSs that use CIO2)
Stage 1 DBP
2S. 11
13 ."'7
1,509 15,922
20 242 5
9 104 3
57,462 2,506,095 2,812,172
300
136
5,389,160
Applies to surface water systems
SWTR
1,135
591
95,231
401
200
279,689
166
69
425,302
39
29
795,701
6
5
8,379,052
1,747
894
9,974,975
Applies to surface water systems serving >=10K people
IESWTR
3 J
3 *1
243 2,Qil
1 157 23
1 46 6
4,950 1,499,698 2,353,419
185
57
3,860,331
Organics:
Applies to CWS and NTNCWS
voc
soc
59
40
4,698
12
7
1,334
6
3
6,130
7
4
5,851
6
4
19,782
7
6
129,706
2
2
101,769
5
1
350,000
78
53
160,316
26
14
458,954
Inorganics:
Applies to CWS and NTNCWS
Nitrates
Arsenic
Other IOC
581
400
46,578
20
15
3,144
256
124
21,123
140
78
87,646
6
4
9,856
34
19
21 ,381
19
8
42,928
1
1
5,010
8
6
35,538
23
14
335,065
2
1
15,490
2
2
30,998
4
3
1 ,377,651
767
503
1 ,889,868
29
21
33,500
300
151
109,040
Applies to CWS
Radionuclides
331
134
25,540
179
66
86,857
59
20
105,448
61
25
594,044
4
2
641,556
634
247
1 ,453,445
Applies to CWS and NTNCWS
Lead & Copper
1,110
877
133,712
308
255
324,712
52
42
235,741
66
48
1 ,361 ,562
3
2
440,814
1,539
1,224
2,496,541
Acronyms:
TCR/T = Total Coliform Rule/Turbidity
SWTR = Surface Water Treatment Rule
IESWTR = Interim Enhanced 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
-------
FY2003 Monitoring violations reported
From SDW1S/FED 03Q4 frozen violations table (except for Chem M/Rs)
Chem M/R data will be from SDWIS/FED 04Q1 frozen violations table, which will be frozen in April
Microbials:
Very small Small Medium Large Very Large
25-500 501-3,300 3,301-10,00010,001-100,00 >100,000
Applies to all water systems
Total
TCR/T
32,709
19,046
1,877,610
2,916
1,765
2,194,682
451
302
1 ,741 ,424
215
169
4,443,292
17
15
4,646,306
36,308
21 ,297
14,903,314
Applies to surface water systems serving >= 10K people that disinfect ( TNCWSs that use CIO2)
Stage 1 DBP
7 32
4 15
854 23,575
13 150 7
8 86 6
48,547 2,284,995 1 ,046,873
209
119
3,404,844
Applies to surface water systems
SWTR
2,034
466
77,238
598
195
276,644
153
84
495,370
136
81
2,566,679
33
18
9,319,119
2,954
844
12,735,050
Applies to surface water systems serving >=10K people
IESWTR
1 1
1 1
3,257
1 59 9
1 16 6
9,900 458,627 1 ,096,565
71
25
1 ,568,349
Organics:
Applies to CWS and NTNCWS
voc
soc
23,619
991
132,352
9,498
407
56,122
4,411
206
268,140
1,510
119
158,327
844
40
212,610
585
43
240,234
899
47
1,135,000
713
35
953,171
274
10
3,409,064
198
8
2,633,264
30,047
1,294
5,157,166
12,504
612
4,041,118
Inorganics: Applies to CWS and NTNCWS
Nitrates
Arsenic
Other IOC
1 1 ,695
9,053
882,656
517
462
60,481
4,771
495
62,816
990
684
834,975
129
112
148,143
1,038
118
153,357
163
98
539,813
48
43
246,625
425
43
242,350
153
89
2,137,409
36
25
582,298
344
32
928,133
42
12
4,538,722
14
5
953,216
141
6
2,153,216
13,043
9,936
8,933,575
744
647
1 ,990,763
6,719
694
3,539,872
Applies to CWS
Radionuclides
520
350
50,135
134
76
102,843
19
13
71 ,360
13
9
290,326
3
1
250,000
689
449
764,664
Applies to CWS and NTNCWS
Lead & Copper
10,774
7,147
963,681
1,890
1,343
1,625,852
329
252
1 ,429,003
197
149
3,847,171
12
12
8,648,498
13,202
8,903
16,514,205
Acronyms:
TCR/T = Total Coliform Rule/Turbidity
SWTR = Surface Water Treatment Rule
IESWTR = Interim Enhanced 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
6 10
6
5,
1 136,
3 1
4 7
6 44
1
17, 28,
9 15
6 1,
2
1
5,
1
10, 2
11
10
60 46
3
23
EPA R2 tribal
EPA R6 tribal) 1
EPA R8 tribal
EPA R9 tribal
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
11,448
2
1,897
63
14
51,998
256
252
1
700
4,666
12
2,674
723
' 542
1
31'
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
122
364 146,878
164
16,577
------- |