TARENTUM BORO WATER DEPT

Q: Is TARENTUM BORO WATER DEPT water safe to drink?

TARENTUM BORO WATER DEPT (PWS ID: PA5020055) has 152 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,927 people using Surface Water sources.

Q: What type of violations does TARENTUM BORO WATER DEPT have?

TARENTUM BORO WATER DEPT has 152 total violations: 8 health-based violations (MCL exceedances or treatment failures), 141 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in TARENTUM BORO WATER DEPT water?

No. TARENTUM BORO WATER DEPT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

Q: What water source does TARENTUM BORO WATER DEPT use?

TARENTUM BORO WATER DEPT uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: Where does this data come from?

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: PA5020055 · TARENTUM, Pennsylvania 15084

TARENTUM BORO WATER DEPT serves 4,927 people in TARENTUM, Pennsylvania using Surface Water water sources. It has 152 recorded EPA violations, including 8 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TARENTUM BORO WATER DEPT

TARENTUM BORO WATER DEPT is a local-owned community water system that delivers drinking water to 4,927 residents in TARENTUM, Pennsylvania (Allegheny County) through 1,850 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 152 total violations for this system , of which 8 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 141 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is CARBON, TOTAL, recorded in 23 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Pennsylvania, EPA tracks 7,701 public water systems serving 12,630,061 people, with 1,159,868 cumulative violations and 68,517 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 150.6 violations. TARENTUM BORO WATER DEPT's 152 violations sit above the Pennsylvania average. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served

4,927

Total Violations

152

Health-Based Violations

Water Source

Surface Water

System Details

System Type: Community
Owner Type: Local
Connections: 1,850
County: Allegheny
School/Daycare: No
MCL Violations: 7
Monitoring Violations: 141
Treatment Tech Violations: 1

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
CARBON, TOTAL	MR	23	2022
Interim Enhanced Surface Water Treatment Rule	MR	18	2019
Surface Water Treatment Rule	MR	10	2005
Chlorine	MR	8	2005
TTHM	MCL	6	2025
Chromium	MR	5	1989
Mercury	MR	5	1989
Arsenic	MR	5	1989
Nitrate	MR	5	1989
Selenium	MR	5	1989
Barium	MR	5	1989
Cadmium	MR	5	1989
Fluoride	MR	5	1989
Di(2-ethylhexyl) adipate	MR	4	2004
Hexachlorocyclopentadiene	MR	4	2004
Benzo(a)pyrene	MR	4	2004
Pentachlorophenol	MR	4	2004
1,2-DIBROMO-3-CHLOROPROPANE	MR	4	2004
ETHYLENE DIBROMIDE	MR	4	2004
Simazine	MR	4	2004
Gross Alpha, Excl. Radon and U	MR	4	2000
Dalapon	MR	4	2023
Total Haloacetic Acids (HAA5)	MR	1	2007
TTHM	MR	1	2007
2,4-D	MR	1	1982
2,4,5-TP	MR	1	1982
Endrin	MCL	1	1984
Endrin	MR	1	1982
CARBON, TOTAL	TT	1	2010
Total Polychlorinated Biphenyls (PCB)	MR	1	2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 90 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFOS	9/22/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFBA	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	9/22/2025	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFHxA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxS	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	9/22/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFNA	9/22/2025	<0.004 µg/L	0.004 µg/L	Not Detected
6:2 FTS	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFHpS	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
4:2 FTS	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
8:2 FTS	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFMPA	9/22/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFPeA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeS	9/22/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFDoA	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFTA	9/22/2025	<0.008 µg/L	0.008 µg/L	Not Detected
PFTrDA	9/22/2025	<0.007 µg/L	0.007 µg/L	Not Detected
NEtFOSAA	9/22/2025	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	9/22/2025	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	9/22/2025	<9 µg/L	9 µg/L	Not Detected
NFDHA	9/22/2025	<0.02 µg/L	0.02 µg/L	Not Detected
PFBS	9/22/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFUnA	9/22/2025	<0.002 µg/L	0.002 µg/L	Not Detected
PFNA	6/16/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFDoA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFOS	6/16/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFHxS	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	6/16/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFBS	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFTrDA	6/16/2025	<0.007 µg/L	0.007 µg/L	Not Detected
PFTA	6/16/2025	<0.008 µg/L	0.008 µg/L	Not Detected
NMeFOSAA	6/16/2025	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	6/16/2025	<9 µg/L	9 µg/L	Not Detected
PFHxA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeS	6/16/2025	<0.004 µg/L	0.004 µg/L	Not Detected
NEtFOSAA	6/16/2025	<0.005 µg/L	0.005 µg/L	Not Detected
NFDHA	6/16/2025	<0.02 µg/L	0.02 µg/L	Not Detected
PFUnA	6/16/2025	<0.002 µg/L	0.002 µg/L	Not Detected
PFHpS	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	6/16/2025	<0.003 µg/L	0.003 µg/L	Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for TARENTUM BORO WATER DEPT.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PA5020055 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Pennsylvania Drinking Water Authority

Pennsylvania DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects TARENTUM BORO WATER DEPT under EPA-delegated authority.

Open PA regulator portal

Source: Pennsylvania DEP — Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2025	TTHM	MCL	6	SDWIS / PA5020055 / 2950
2023	Dalapon	MR	4	SDWIS / PA5020055 / 2031
2022	CARBON, TOTAL	MR	23	SDWIS / PA5020055 / 2920
2019	Interim Enhanced Surface Water Treatment Rule	MR	18	SDWIS / PA5020055 / 0300
2014	Total Polychlorinated Biphenyls (PCB)	MR	1	SDWIS / PA5020055 / 2383
2010	CARBON, TOTAL	TT	1	SDWIS / PA5020055 / 2920
2007	Total Haloacetic Acids (HAA5)	MR	1	SDWIS / PA5020055 / 2456
2007	TTHM	MR	1	SDWIS / PA5020055 / 2950
2005	Surface Water Treatment Rule	MR	10	SDWIS / PA5020055 / 0200
2005	Chlorine	MR	8	SDWIS / PA5020055 / 0999
2004	Di(2-ethylhexyl) adipate	MR	4	SDWIS / PA5020055 / 2035
2004	Hexachlorocyclopentadiene	MR	4	SDWIS / PA5020055 / 2042
2004	Benzo(a)pyrene	MR	4	SDWIS / PA5020055 / 2306
2004	Pentachlorophenol	MR	4	SDWIS / PA5020055 / 2326
2004	1,2-DIBROMO-3-CHLOROPROPANE	MR	4	SDWIS / PA5020055 / 2931

How TARENTUM BORO WATER DEPT Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	TARENTUM BORO WATER DEPT	Pennsylvania avg	Federal benchmark
Total violations	152	150.6	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	8	8.9	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	57.6%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	4,927	1,640	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,701 regulated public water systems in Pennsylvania.

Federal MCL reference — Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is TARENTUM BORO WATER DEPT water safe to drink? ▼

TARENTUM BORO WATER DEPT (PWS ID: PA5020055) has 152 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,927 people using Surface Water sources.

How many people does TARENTUM BORO WATER DEPT serve? ▼

TARENTUM BORO WATER DEPT serves 4,927 people in TARENTUM, Pennsylvania. It is a Local-owned system using Surface Water water sources with 1,850 service connections.

What type of violations does TARENTUM BORO WATER DEPT have? ▼

TARENTUM BORO WATER DEPT has 152 total violations: 8 health-based violations (MCL exceedances or treatment failures), 141 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in TARENTUM BORO WATER DEPT water? ▼

No. TARENTUM BORO WATER DEPT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

What water source does TARENTUM BORO WATER DEPT use? ▼

TARENTUM BORO WATER DEPT uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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