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Tap water quality report

Mars Borough Water Works

EPA monitoring tested this supplier for 81 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
17
detected
1,956
people served
3
health-based violations
Pennsylvania rankingsLead in PennsylvaniaPFAS in Pennsylvania
Water source
Ground water
Ownership
Local government
Counties served
Butler

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.

3
health-based violations
562
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2012-05-01 → 2012-05-31
TT Health-based Resolved 2012-05-01 → 2012-05-31
TT Health-based Resolved 2012-05-01 → 2012-05-31
Other Monitoring Resolved 2025-07-11
Other Monitoring Resolved 2025-07-11
Other Monitoring Resolved 2025-07-11
MR Monitoring Resolved 2024-06-01 → 2024-06-30
MR Monitoring Resolved 2024-06-01 → 2024-06-30
MR Monitoring Resolved 2023-03-01 → 2023-03-31
MR Monitoring Resolved 2023-03-01 → 2023-03-31

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
507.35 µg/L 39%
of the EPA limit 1300 µg/L
worst single sample: 830 µg/L
50/50 SYR4 2012–2019
Bromodichloromethane
9.27 µg/L
No EPA limit set
worst single sample: 9.6 µg/L
12/12 SYR4 2013–2019
Chloroform
7.0805 µg/L
No EPA limit set
worst single sample: 9.44 µg/L
12/12 SYR4 2013–2019
Dibromochloromethane
10.81 µg/L
No EPA limit set
worst single sample: 11.8 µg/L
12/12 SYR4 2013–2019
Bromoform
4.1 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
11/12 SYR4 2013–2019
TTHM
29.21 µg/L 37%
of the EPA limit 80 µg/L
worst single sample: 30.2 µg/L
10/10 SYR4 2013–2019
cis-1,2-Dichloroethylene
3.312 µg/L 4.7%
of the EPA limit 70 µg/L
worst single sample: 3.48 µg/L
8/8 SYR4 2012–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 4/4 LCR 1996
Lead
12.5 µg/L 83%
of the EPA limit 15 µg/L
worst single sample: 14 µg/L
4/50 SYR4 2012–2019
Nitrate
160 µg/L 1.6%
of the EPA limit 10000 µg/L
 4/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.88 µg/L 18%
of the EPA limit 60 µg/L
worst single sample: 11 µg/L
4/10 SYR4 2013–2019
Barium
218 µg/L 11%
of the EPA limit 2000 µg/L
worst single sample: 220 µg/L
3/3 SYR4 2012–2018
Fluoride
256.95 µg/L 6.4%
of the EPA limit 4000 µg/L
worst single sample: 260 µg/L
2/3 SYR4 2012–2018
Dibromoacetic Acid
2.52 µg/L
No EPA limit set
 1/1 SYR4 2019
Dichloroacetic Acid
3.8 µg/L
No EPA limit set
 1/1 SYR4 2019
Monochloroacetic Acid
2.33 µg/L
No EPA limit set
 1/1 SYR4 2019
Trichloroacetic Acid
1.56 µg/L
No EPA limit set
 1/1 SYR4 2019
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Andy Schulthei
Phone
724-625-1858

Frequently asked questions about Mars Borough Water Works

Is Mars Borough Water Works tap water safe to drink?

EPA monitoring detected 17 contaminants in Mars Borough Water Works'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 Mars Borough Water Works's water?

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

How many people does Mars Borough Water Works serve?

Mars Borough Water Works reports serving 1,956 people in Pennsylvania, per its EPA record.

Has Mars Borough Water Works had any water quality violations?

The EPA has 562 violations on file for Mars Borough Water Works, of which 3 are health-based (a contaminant limit or required treatment was breached) and 0 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.