Tap WaterIndex

Tap water quality report

Mason Co Psd-Crab Creek

EPA monitoring tested this supplier for 75 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
18
detected
2,039
people served
15
health-based violations
Water source
Ground water
Ownership
Local government
Counties served
Mason

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

15
health-based violations
34
violations on file
12
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
TT Health-based Unaddressed 2025-12-01
MCL Health-based Resolved 2014-05-01 → 2014-05-31
MCL Health-based Resolved 2014-05-01 → 2014-05-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
1220 µg/L 94%
of the EPA limit 1300 µg/L
worst single sample: 1780 µg/L
60/60 SYR4 2013–2019
Lead
8.51 µg/L 57%
of the EPA limit 15 µg/L
worst single sample: 19.8 µg/L
58/60 SYR4 2013–2019
Nitrate
3590 µg/L 36%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Bromodichloromethane
3.736 µg/L
No EPA limit set
worst single sample: 3.79 µg/L
7/9 SYR4 2012–2019
Bromoform
1.42 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
7/9 SYR4 2012–2019
Chloroform
2.665 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
7/9 SYR4 2012–2019
Dibromochloromethane
3.167 µg/L
No EPA limit set
worst single sample: 3.2 µg/L
7/9 SYR4 2012–2019
TTHM
9.54 µg/L 12%
of the EPA limit 80 µg/L
worst single sample: 9.6 µg/L
7/9 SYR4 2012–2019
Dibromoacetic Acid
1.96 µg/L
No EPA limit set
worst single sample: 2 µg/L
6/8 SYR4 2012–2019
Dichloroacetic Acid
2.485 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
6/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
8.81 µg/L 15%
of the EPA limit 60 µg/L
worst single sample: 9.88 µg/L
6/8 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
0.9232 pCi/L 6.2%
of the EPA limit 15 pCi/L
worst single sample: 0.9620 pCi/L
2/2 SYR4 2013–2019
Barium
39 µg/L 2%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Fluoride
170 µg/L 4.3%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Monochloroacetic Acid
5.91 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Nitrite
320 µg/L 32%
of the EPA limit 1000 µg/L
 1/1 SYR4 2019
Trichloroacetic Acid
1.1 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
57 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Mason Co Psd-Crab Creek

Is Mason Co Psd-Crab Creek tap water safe to drink?

EPA monitoring detected 18 contaminants in Mason Co Psd-Crab Creek's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Mason Co Psd-Crab Creek's water?

EPA monitoring detected Copper, Lead, Nitrate, Lead, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Mason Co Psd-Crab Creek serve?

Mason Co Psd-Crab Creek reports serving 2,039 people, per its EPA record.

Has Mason Co Psd-Crab Creek had any water quality violations?

The EPA has 34 violations on file for Mason Co Psd-Crab Creek, of which 15 are health-based (a contaminant limit or required treatment was breached) and 12 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.