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Gross Alpha, Excl. Radon and U in U.S. Drinking Water

Health-based violation data for Gross Alpha, Excl. Radon and U from EPA Safe Drinking Water Information System (SDWIS). Covers all community water systems with violations on record.

Gross Alpha, Excl. Radon and U has been found in violation of EPA standards in 381 water systems across 34 states, with 6,626 total health-based violations recorded. The most affected states are Texas, Missouri, Colorado.

Health-Based Violation Records
6,626
Water Systems Affected
381
States Affected
34

Gross Alpha, Excl. Radon and U is regulated under the EPA Safe Drinking Water Act, which sets enforceable Maximum Contaminant Levels (MCLs) and associated treatment technique requirements for public water systems. The EPA Safe Drinking Water Information System (SDWIS) tracks every recorded violation nationwide and links it back to the specific public water system (PWSID), violation type, and begin date.

Across the United States, PlainEnviro's joined extract contains 6,626 health-based violation records carrying Gross Alpha, Excl. Radon and U (EPA code 4000) across 381 active community water systems in 34 states. Raw record counts are highest in Texas, Missouri, Colorado, with Texas accounting for 2,380 records across 72 systems. Health-effect prose is shown only when the official ECHO substance name matches a verified topic; otherwise the portal stays silent rather than inventing guidance.

A health-based violation does not mean residents were necessarily harmed, it means the contaminant exceeded the federal MCL in a compliance sample, triggering notification and remediation requirements. States and utilities maintain primary enforcement responsibility. To check the status of a specific water system, request its most recent Consumer Confidence Report or consult the EPA's Drinking Water Watch portal for the corresponding state.

Violations by State

States ranked by number of health-based violations for Gross Alpha, Excl. Radon and U.

# State Violations Systems Affected
1 Texas 2,380 72
2 Missouri 881 28
3 Colorado 713 20
4 Wisconsin 442 9
5 Georgia 339 25
6 South Dakota 184 9
7 Oklahoma 161 17
8 Minnesota 109 22
9 New Jersey 78 12
10 Florida 68 7
11 New Mexico 61 9
12 Pennsylvania 55 5
13 North Carolina 54 9
14 Utah 52 3
15 New Hampshire 51 8
16 South Carolina 50 4
17 Virginia 47 4
18 Massachusetts 38 2
19 Idaho 37 5
20 New York 30 7
21 Illinois 26 4
22 Iowa 25 4
23 Arizona 20 3
24 Maine 17 2
25 Alabama 15 2
26 Oregon 13 1
27 Rhode Island 13 2
28 California 11 2
29 Nebraska 11 7
30 Wyoming 7 2
31 Kansas 5 1
32 Vermont 5 4
33 Montana 4 1
34 West Virginia 3 1

Most Affected Water Systems

Top 50 water systems by number of Gross Alpha, Excl. Radon and U health-based violations.

Water System State Violations
CITY OF BRADY WATER SYSTEM TX 446
WAUKESHA WATER UTILITY WI 309
MAY VALLEY WA CO 192
TEMPE WSC 1 TX 184
ABRAXAS UTILITIES MO 140
SOUTH SWINK WATER AUTHORITY CO 125
CITY OF MASON TX 123
SAN PEDRO CANYON SUBDIVISION - UPPER TX 118
KENDALL COUNTY WCID 1 TX 98
SOUTH SILVER CREEK I II & III MO 90
ARIMAK WATER SUPPLY TX 86
MILLERSVIEW DOOLE WSC TX 83
SHIRT TAIL GULCH DEVELOPMENT SD 80
LAKELAND SERVICES TX 78
WESTLAKE MEADOWS SUBDIVISION MO 72
TERRE DU LAC MO 70
VALLEY WC CO 69
SOUTH COUNCIL CREEK 2 MO 64
LANAGAN PWS MO 60
CITY OF MELVIN TX 60
COUNCIL CREEK VILLAGE MO 57
LIVE OAK HILLS SUBDIVISION MO 55
G & W WSC TX 54
WHITE TAIL RIDGE LAKES ESTATES TX 54
HIGHLAND COURT TX 53
SADDLE CLUB ESTATES TX 52
TEXAS LANDING UTILITIES MO 52
FRIO CANON WATER TX 51
VROMAN WC CO 50
EMERALD ESTATES TX 49
PEWAUKEE VILLAGE WATERWORKS WI 48
OAK PARK GA 47
SKIDMORE WSC TX 46
HARRIS COUNTY MUD 25 BROOK HOLLOW WEST S TX 46
VISTA VERDE WATER SYSTEMS MO 46
PATTERSON VALLEY WC CO 45
ATASCOSA RURAL WSC TX 43
PINWAH PINES ESTATES TX 40
HOMESTEAD WC CO 39
EUREKA WC CO 39
SANDY RUN MHP (SC0860037) SC 39
CHART HOUSE CONDOMINIUM TX 37
BOWLING GREEN, TOWN OF VA 37
A & S WATER SERVICES TX 36
LAKE LIVINGSTON PINESHADOWS EAST TX 35
PECOS COUNTY FRESH WATER TX 33
LEXINGTON GA 32
TANGLEWOOD FOREST SUBDIVISION TX 32
LAST FRONTIER SUBDIVISION GA 31
FRANKLIN COUNTY WATER SYSTEM GA 30

Frequently Asked Questions

Is Gross Alpha, Excl. Radon and U in my water?

Gross Alpha, Excl. Radon and U has been detected in violation of EPA health standards in 381 water systems across 34 states. To check your specific utility, look up your annual Consumer Confidence Report (CCR) - water systems are required to disclose all violations.

How many water systems have Gross Alpha, Excl. Radon and U violations?

EPA SDWIS records show 381 community water systems with health-based Gross Alpha, Excl. Radon and U violations, totaling 6,626 violations. These represent cases where the contaminant exceeded the EPA Maximum Contaminant Level (MCL).

Which states have the most Gross Alpha, Excl. Radon and U violations?

The states with the most Gross Alpha, Excl. Radon and U violations are: Texas (2,380 violations), Missouri (881 violations), Colorado (713 violations), Wisconsin (442 violations), Georgia (339 violations).

Explore More

Water Quality Home → All Contaminants → Browse by State →

About This Data

Violation data is from the EPA Safe Drinking Water Information System (SDWIS). Only health-based violations are shown, these include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Monitoring and reporting violations are excluded. Data may not reflect the most current enforcement actions.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro