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NORTH WALES WATER AUTHORITY

PWS ID: PA1460048 · NORTH WALES, Pennsylvania 19454

NORTH WALES WATER AUTHORITY serves 72,496 people in NORTH WALES, Pennsylvania using Surface Water water sources. It has 422 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (10 compounds found).

Water Quality Snapshot: NORTH WALES WATER AUTHORITY

NORTH WALES WATER AUTHORITY is a local-owned community water system that delivers drinking water to 72,496 residents in NORTH WALES, Pennsylvania (Montgomery County) through 25,877 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 422 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 419 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 1,2-Dichloroethane, recorded in 35 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 10 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 9.65 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. NORTH WALES WATER AUTHORITY's 422 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.

PFAS Detected

10 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
72,496
Total Violations
422
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
25,877
County
Montgomery
School/Daycare
No
MCL Violations
0
Monitoring Violations
419
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2-Dichloroethane MR 35 1994
Carbon tetrachloride MR 35 1994
Trichloroethylene MR 35 1994
Benzene MR 35 1994
1,1,1-Trichloroethane MR 35 1994
1,1-Dichloroethylene MR 35 1994
p-Dichlorobenzene MR 30 1994
Vinyl chloride MR 30 1991
Groundwater Rule MR 16 2025
Total Haloacetic Acids (HAA5) MR 10 2025
Surface Water Treatment Rule MR 9 2021
Interim Enhanced Surface Water Treatment Rule MR 7 2021
Di(2-ethylhexyl) adipate MR 7 1996
Di(2-ethylhexyl) phthalate MR 7 1996
cis-1,2-Dichloroethylene MR 5 1994
1,2-Dichloropropane MR 5 1994
Tetrachloroethylene MR 5 1994
trans-1,2-Dichloroethylene MR 5 1994
Toluene MR 5 1994
DICHLOROMETHANE MR 5 1994
Styrene MR 5 1994
o-Dichlorobenzene MR 5 1994
Xylenes, Total MR 5 1994
1,2,4-Trichlorobenzene MR 5 1994
Ethylbenzene MR 5 1994
CHLOROBENZENE MR 5 1994
1,1,2-Trichloroethane MR 5 1994
Benzo(a)pyrene MR 4 1995
Nitrate MR 4 2005
CARBON, TOTAL MR 3 2006

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 70 of 480 samples detected PFAS.

Contaminant Date Result MRL Status
PFNA 8/14/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 8/14/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/14/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 8/14/2024 0.0030 µg/L 0.003 µg/L Detected
NMeFOSAA 8/14/2024 <0.006 µg/L 0.006 µg/L Not Detected
8:2 FTS 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/14/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 8/14/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/14/2024 0.0060 µg/L 0.003 µg/L Detected
PFMPA 8/14/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 8/14/2024 <0.002 µg/L 0.002 µg/L Not Detected
4:2 FTS 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/14/2024 0.0054 µg/L 0.004 µg/L Detected
PFOS 8/14/2024 0.0052 µg/L 0.004 µg/L Detected
lithium 8/14/2024 <9 µg/L 9 µg/L Not Detected
9Cl-PF3ONS 8/14/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 8/14/2024 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/14/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/14/2024 0.0090 µg/L 0.003 µg/L Detected
PFMBA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/14/2024 <0.008 µg/L 0.008 µg/L Not Detected
NFDHA 8/14/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/14/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 8/14/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/14/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/14/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFEESA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/14/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/14/2024 <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 NORTH WALES WATER AUTHORITY.

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 PA1460048 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 NORTH WALES WATER AUTHORITY 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 Groundwater Rule MR 16 SDWIS / PA1460048 / 0700
2025 Total Haloacetic Acids (HAA5) MR 10 SDWIS / PA1460048 / 2456
2021 Surface Water Treatment Rule MR 9 SDWIS / PA1460048 / 0200
2021 Interim Enhanced Surface Water Treatment Rule MR 7 SDWIS / PA1460048 / 0300
2016 Consumer Confidence Rule Other 3 SDWIS / PA1460048 / 7000
2006 CARBON, TOTAL MR 3 SDWIS / PA1460048 / 2920
2005 Nitrate MR 4 SDWIS / PA1460048 / 1040
2005 TTHM MR 2 SDWIS / PA1460048 / 2950
2003 Chlorine MR 2 SDWIS / PA1460048 / 0999
1996 Di(2-ethylhexyl) adipate MR 7 SDWIS / PA1460048 / 2035
1996 Di(2-ethylhexyl) phthalate MR 7 SDWIS / PA1460048 / 2039
1995 Benzo(a)pyrene MR 4 SDWIS / PA1460048 / 2306
1994 1,2-Dichloroethane MR 35 SDWIS / PA1460048 / 2980
1994 Carbon tetrachloride MR 35 SDWIS / PA1460048 / 2982
1994 Trichloroethylene MR 35 SDWIS / PA1460048 / 2984

How NORTH WALES WATER AUTHORITY Compares

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

Metric NORTH WALES WATER AUTHORITY Pennsylvania avg Federal benchmark
Total violations 422 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 8.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 10 compounds 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 72,496 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 NORTH WALES WATER AUTHORITY water safe to drink? ▼
NORTH WALES WATER AUTHORITY (PWS ID: PA1460048) has 422 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 10 PFAS compounds found. This system serves 72,496 people using Surface Water sources.
How many people does NORTH WALES WATER AUTHORITY serve? ▼
NORTH WALES WATER AUTHORITY serves 72,496 people in NORTH WALES, Pennsylvania. It is a Local-owned system using Surface Water water sources with 25,877 service connections.
What type of violations does NORTH WALES WATER AUTHORITY have? ▼
NORTH WALES WATER AUTHORITY has 422 total violations: 0 health-based violations (MCL exceedances or treatment failures), 419 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in NORTH WALES WATER AUTHORITY water? ▼
Yes. UCMR5 testing detected 10 PFAS compounds in NORTH WALES WATER AUTHORITY's water supply: PFPeA, PFBS, PFOA, PFOS, lithium, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does NORTH WALES WATER AUTHORITY use? ▼
NORTH WALES WATER AUTHORITY 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.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial