What is Asbestos in drinking water?

Asbestos averages 3.5 violations per affected system (9,315 total / 2,694 systems) in the EPA SDWIS extract.

How many water systems have Asbestos violations?

2,694 systems sit in the mid footprint band (mid footprint (≤ 8,691 systems)).

Are Asbestos violations dangerous?

4.1% are health-based. The rest are monitoring/reporting, still compliance failures, but not the same as an MCL exceedance.

Where does Asbestos sit in the national contaminant ledger?

#89 of 157 indexable contaminants by violation volume - middle-third volume (≤ 49,133 violations), sparse load (≤ 3.7 violations per affected system).

Where does this contaminant data come from?

EPA Safe Drinking Water Information System (SDWIS) quarterly extracts. Counts are cumulative compliance records, not a live risk score for a single tap.

Contaminants →

EPA SDWIS

Asbestos in Drinking Water

Compiled by PlainWater · May 15, 2026

3.5 violations per affected system (9,315 across 2,694) - sparse load (≤ 3.7 violations per affected system).

Browse all SDWIS contaminants →

EPA contaminant code: 1094

Total Violations

9,315

Systems Affected

2,694

Health-Based %

4.1%

Violations / System

3.5

Asbestos standing, mid-volume SDWIS third

Asbestos lands in the middle third by violation volume (9,315), large enough for peer comparisons but not one of the handful of analytes that dominate the fleet-wide SDWIS ledger. Load is sparse: 3.5 violations per affected system (sparse load (≤ 3.7 violations per affected system)), so the footprint is wide relative to the raw count, many systems with few records each. Health-based share is only 4.1% - almost all of this analyte's trail is monitoring/reporting rather than MCL exceedance. Among 157 indexable contaminants, this page is #89 by violation volume. Utilities listed below are ranked by cumulative violation count for this analyte; pair that with population served to gauge household exposure scale.

Nationwide similar contaminants

Nearest by violation volume

Long Term 2 Enhanced Surface Water Treatment Rule (9,010) Stage 1 Disinfectants and Disinfection Byproducts Rule (8,248) 2,3,7,8-TCDD (14,181) Gross Beta Particle Activity (3,274)

Nearest by systems affected

Interim Enhanced Surface Water Treatment Rule (2,920 systems) Aldicarb sulfoxide (3,220 systems) Aldicarb sulfone (3,221 systems) Aldicarb (3,231 systems)

Asbestos: mixed health vs monitoring split

4.1% health-based · 95.9% monitoring/reporting across 9,315 records.

Health-based (4.1%) Monitoring/Reporting (95.9%)

Most Affected Water Systems

System	State	Violations	Population
City of Arp	TX	130	1,249
Key Road Subdivision Water System	TX	102	54
Hardin Water Department	KY	60	1,606
Freeland Boro Muni Water Auth	PA	45	4,610
Jefferson Co RWD 1	KS	41	2,343
Vogel Farm Spring Water Co	PA	35	25
Reynolds	GA	33	1,301
North Marshall Water District #1	KY	31	16,276
City of Devine	TX	28	4,318
Grand Portage	05	26	820
Village at Camelback	PA	19	309
City of Shavano Park	TX	19	2,200
Rock Creek Mh Village	NC	18	275
Adams Mfg Plant 2	PA	18	160
The Center for Life Enrichment	MD	17	70
Hot Springs Court	08	16	55
City of Show Low	AZ	16	17,139
Tucson City Of	AZ	16	732,906
Rock Creek Mh Village No 2	NC	16	305
Fleming-Neon Water Company	KY	15	3,212
Davis	OK	15	2,610
Tall Timbers Village M H P	PA	15	275
Kingdom Hills Mobile Home Park	PA	15	55
Saltillo Muni Water Works	PA	15	350
The Escape	PA	14	1,100
Tower Springs LLC	PA	14	25
Central Wcid of Angelina County	TX	14	7,381
Zeba	05	13	350
Sandy Run Assoc	PA	13	47
Weatherly Boro Mun Auth	PA	13	2,612

Context: understanding water quality data · is my water safe?

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Safe Drinking Water Information System (SDWIS). Consult a qualified professional before making decisions based on this data.

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

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.