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Sewickley Boro Water Auth

EPA monitoring tested this supplier for 109 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
19
detected
6,800
people served
4
health-based violations
Pennsylvania rankingsLead in PennsylvaniaPFAS in Pennsylvania
Water source
Ground water
Ownership
Local government
Counties served
Allegheny

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.

4
health-based violations
224
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-11-04
TT Health-based Resolved 2024-11-04
TT Health-based Resolved 2024-11-04
TT Health-based Resolved 2011-08-01 → 2011-08-31
Other Monitoring Resolved 2025-10-01
Other Monitoring Resolved 2025-10-01
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0066 µg/L 2/2 2023
PFBS 0.0057 µg/L 2/2 2023
Pfhxa 0.0078 µg/L 2/2 2023
PFHXS 0.0033 µg/L 2/2 2023
Pfpea 0.0120 µg/L 2/2 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
1620 µg/L 125%
of the EPA limit, in the worst sample — 1300 µg/L
 60/60 SYR4 2013–2019
Lead
35 µg/L 233%
of the EPA limit, in the worst sample — 15 µg/L
 30/60 SYR4 2013–2019
Nitrate
3590 µg/L 36%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0055 mg/L 37%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Bromodichloromethane
5.09 µg/L
No EPA limit set
 11/11 SYR4 2012–2019
Bromoform
7.34 µg/L
No EPA limit set
 11/11 SYR4 2012–2019
Dibromochloromethane
9.05 µg/L
No EPA limit set
 11/11 SYR4 2012–2019
TTHM
24 µg/L 30%
of the EPA limit 80 µg/L
 11/11 SYR4 2012–2019
Chloroform
2 µg/L
No EPA limit set
 9/11 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
8 µg/L 13%
of the EPA limit 60 µg/L
 5/11 SYR4 2012–2019
Tetrachloroethylene
1.13 µg/L 23%
of the EPA limit 5 µg/L
 4/8 SYR4 2012–2019
Fluoride
980 µg/L 25%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Dibromoacetic Acid
4.09 µg/L
No EPA limit set
 2/2 SYR4 2012–2019
Dichloroacetic Acid
1 µg/L
No EPA limit set
 1/2 SYR4 2012–2019
90 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARK BROOKS
Phone
412-741-9180

Frequently asked questions about Sewickley Boro Water Auth

Is Sewickley Boro Water Auth tap water safe to drink?

EPA monitoring detected 19 contaminants in Sewickley Boro Water 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 Sewickley Boro Water Auth'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 Sewickley Boro Water Auth serve?

Sewickley Boro Water Auth reports serving 6,800 people in Pennsylvania, per its EPA record.

Has Sewickley Boro Water Auth had any water quality violations?

The EPA has 224 violations on file for Sewickley Boro Water Auth, of which 4 are health-based (a contaminant limit or required treatment was breached) and 2 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.