Is Derry Boro Muni Auth Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Westmoreland

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.

health-based violations

335

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	1985-08-26 → 1985-10-25
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
PFBS	0.0150 µg/L	4/4	2023

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	236.4 µg/L 18% of the EPA limit 1300 µg/L worst single sample: 909 µg/L	55/60	SYR4	2013–2019
Bromodichloromethane	6.38 µg/L No EPA limit set worst single sample: 7.1 µg/L	52/52	SYR4	2012–2019
Chloroform	37.535 µg/L No EPA limit set worst single sample: 44.9 µg/L	52/52	SYR4	2012–2019
TTHM	43.09 µg/L 54% of the EPA limit 80 µg/L worst single sample: 51.9 µg/L	52/52	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	46.865 µg/L 78% of the EPA limit 60 µg/L worst single sample: 50.6 µg/L	42/52	SYR4	2012–2019
Trichloroacetic Acid	14.7 µg/L No EPA limit set worst single sample: 20.4 µg/L	40/50	SYR4	2013–2019
Dibromochloromethane	1.4295 µg/L No EPA limit set worst single sample: 1.85 µg/L	38/52	SYR4	2012–2019
Dichloroacetic Acid	29.6 µg/L No EPA limit set worst single sample: 31.9 µg/L	32/50	SYR4	2013–2019
Lead	0.0010 mg/L 6.9% of the EPA limit 0.0150 mg/L	13/13	LCR	2025
Lead	38.38 µg/L 256% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 69.9 µg/L	11/60	SYR4	2013–2019
Barium	40.625 µg/L 2% of the EPA limit 2000 µg/L worst single sample: 42.9 µg/L	8/8	SYR4	2012–2019
Monochloroacetic Acid	4.392 µg/L No EPA limit set worst single sample: 4.47 µg/L	5/50	SYR4	2013–2019
Selenium	2.45 µg/L 4.9% of the EPA limit 50 µg/L	1/8	SYR4	2012–2019

96 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: RON SEICH
Phone: 724-694-2305

Frequently asked questions about Derry Boro Muni Auth

Is Derry Boro Muni Auth tap water safe to drink?

EPA monitoring detected 14 contaminants in Derry Boro Muni Auth'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 Derry Boro Muni Auth's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Derry Boro Muni Auth serve?

Derry Boro Muni Auth reports serving 6,500 people in Pennsylvania, per its EPA record.

Has Derry Boro Muni Auth had any water quality violations?

The EPA has 335 violations on file for Derry Boro Muni Auth, of which 1 is 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.