Carbon, Total in drinking water
367 active public water systems in 38 states had a Carbon, Total violation in the past three years, and 70 have one that is still unresolved.
You are on Tapcensus, an independent guide to the EPA compliance records of every public water system in the United States. This page explains Carbon, Total and lists the water systems whose records include a related violation. It does not show measured levels.
Is Carbon, Total in the records for your water system?
Enter a ZIP code, town, or street address to see the water systems that serve your area, their status, and which rules and contaminants appear in their violations.
Enter a ZIP code, town, or street address.
The standard and what a violation means
Water systems with a Carbon, Total violation, by state
Active public water systems that reported at least one related violation to EPA in the past three years. Each state links to the list of its affected systems.
| State | Systems with violations, 3 yr | Share of active systems | Unresolved |
|---|---|---|---|
| Pennsylvania | 89 | 1% | 16 |
| Oklahoma | 55 | 4% | 12 |
| Illinois | 32 | 1% | 2 |
| West Virginia | 25 | 3% | 6 |
| Texas | 22 | 0% | 0 |
| Colorado | 15 | 1% | 5 |
| North Carolina | 13 | 0% | 4 |
| Alaska | 11 | 1% | 5 |
| Arizona | 10 | 1% | 4 |
| Kansas | 10 | 1% | 4 |
| Alabama | 7 | 1% | 0 |
| Michigan | 7 | 0% | 1 |
| Missouri | 6 | 0% | 2 |
| New York | 6 | 0% | 0 |
| Virginia | 6 | 0% | 1 |
| Idaho | 5 | 0% | 1 |
| Rhode Island | 5 | 1% | 0 |
| Tennessee | 5 | 1% | 0 |
| Indiana | 4 | 0% | 0 |
| Kentucky | 4 | 1% | 2 |
| Maryland | 4 | 0% | 0 |
| Connecticut | 3 | 0% | 0 |
| Iowa | 3 | 0% | 0 |
| Massachusetts | 3 | 0% | 0 |
| Ohio | 3 | 0% | 0 |
| Montana | 2 | 0% | 2 |
| Georgia | 1 | 0% | 0 |
| Louisiana | 1 | 0% | 1 |
| Mississippi | 1 | 0% | 0 |
| Nebraska | 1 | 0% | 0 |
| New Hampshire | 1 | 0% | 0 |
| New Mexico | 1 | 0% | 0 |
| Nevada | 1 | 0% | 0 |
| Oregon | 1 | 0% | 1 |
| South Dakota | 1 | 0% | 0 |
| Utah | 1 | 0% | 1 |
| Washington | 1 | 0% | 0 |
| Wyoming | 1 | 0% | 0 |
Largest water systems with a Carbon, Total violation
The ten biggest systems, by people served, whose records include a related violation in the past three years.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Chicago Cook County |
2,721,308 | 4 | 0 | |
|
Providence-City of Cranston, Johnston, North Providence and 1 more · Providence County |
333,142 | 2 | 0 | |
|
Mobile, Bd. of W&s Comm. of the City of Mobile · Mobile County |
279,000 | 2 | 0 | |
|
Gilbert, Town of Gilbert · Maricopa County |
247,600 | 9 | 1 | |
|
Scottsdale City of Scottsdale · Maricopa County |
241,361 | 2 | 0 | |
|
Glendale City of Glendale · Maricopa County |
234,766 | 3 | 0 | |
|
York Water CO York County |
206,762 | 2 | 0 | |
|
Peoria City of Peoria · Maricopa County |
187,676 | 4 | 1 | |
|
Brunswick County Water System Leland · Brunswick County |
151,357 | 2 | 0 | |
|
Mawc Sweeney Plant Westmoreland County |
143,000 | 2 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Carbon, Total, including monitoring and reporting lapses. Rules violated and status in the systems table are for the whole system, not Carbon, Total alone. Counts cover active systems in all 50 states and the District of Columbia.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.