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GREATER JOHNSTOWN WA RIVERSIDE

PWS ID: PA4110034 · JOHNSTOWN, Pennsylvania 15907

GREATER JOHNSTOWN WA RIVERSIDE serves 49,500 people in JOHNSTOWN, Pennsylvania using Surface Water water sources. It has 186 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GREATER JOHNSTOWN WA RIVERSIDE

GREATER JOHNSTOWN WA RIVERSIDE is a local-owned community water system that delivers drinking water to 49,500 residents in JOHNSTOWN, Pennsylvania (Cambria County) through 21,902 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 186 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 174 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 Revised Total Coliform Rule, recorded in 12 violations (MON). 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. GREATER JOHNSTOWN WA RIVERSIDE's 186 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
49,500
Total Violations
186
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
21,902
County
Cambria
School/Daycare
No
MCL Violations
0
Monitoring Violations
174
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 12 2023
Public Notice Other 9 2021
Surface Water Treatment Rule MR 8 2023
Chlorine MR 8 2023
Interim Enhanced Surface Water Treatment Rule MR 5 2025
Methoxychlor MR 4 2023
Toxaphene MR 4 2023
Endothall MR 4 2023
Glyphosate MR 4 2023
OXAMYL MR 4 2023
Picloram MR 4 2023
Dinoseb MR 4 2023
Carbofuran MR 4 2023
Atrazine MR 4 2023
Heptachlor MR 4 2023
Heptachlor epoxide MR 4 2023
2,4,5-TP MR 4 2023
Total Polychlorinated Biphenyls (PCB) MR 4 2023
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2023
Chlordane MR 4 2023
Asbestos MR 4 2022
Benzo(a)pyrene MR 4 2023
HEXACHLOROBENZENE MR 4 2023
Endrin MR 4 2023
LASSO MR 4 2023
BHC-GAMMA MR 4 2023
Dalapon MR 4 2023
Hexachlorocyclopentadiene MR 4 2023
Diquat MR 4 2023
Simazine MR 4 2023

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 8/15/2023 <9 µg/L 9 µg/L Not Detected
PFUnA 8/15/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/15/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 8/15/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/15/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/15/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/15/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/30/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/30/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 5/30/2023 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 5/30/2023 <0.002 µg/L 0.002 µg/L Not Detected
lithium 5/30/2023 <9 µg/L 9 µg/L Not Detected
PFPeA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/30/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/30/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/30/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/30/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 5/30/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 5/30/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 5/30/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 5/30/2023 <0.004 µg/L 0.004 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 GREATER JOHNSTOWN WA RIVERSIDE.

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 PA4110034 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 GREATER JOHNSTOWN WA RIVERSIDE 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 Interim Enhanced Surface Water Treatment Rule MR 5 SDWIS / PA4110034 / 0300
2024 Barium MR 2 SDWIS / PA4110034 / 1010
2024 Cadmium MR 2 SDWIS / PA4110034 / 1015
2024 Chromium MR 2 SDWIS / PA4110034 / 1020
2024 Fluoride MR 2 SDWIS / PA4110034 / 1025
2024 Mercury MR 2 SDWIS / PA4110034 / 1035
2024 Nickel MR 2 SDWIS / PA4110034 / 1036
2023 Revised Total Coliform Rule MON 12 SDWIS / PA4110034 / 8000
2023 Surface Water Treatment Rule MR 8 SDWIS / PA4110034 / 0200
2023 Chlorine MR 8 SDWIS / PA4110034 / 0999
2023 Methoxychlor MR 4 SDWIS / PA4110034 / 2015
2023 Toxaphene MR 4 SDWIS / PA4110034 / 2020
2023 Endothall MR 4 SDWIS / PA4110034 / 2033
2023 Glyphosate MR 4 SDWIS / PA4110034 / 2034
2023 OXAMYL MR 4 SDWIS / PA4110034 / 2036

How GREATER JOHNSTOWN WA RIVERSIDE Compares

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

Metric GREATER JOHNSTOWN WA RIVERSIDE Pennsylvania avg Federal benchmark
Total violations 186 150.6 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 None 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 49,500 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 GREATER JOHNSTOWN WA RIVERSIDE water safe to drink? ▼
GREATER JOHNSTOWN WA RIVERSIDE (PWS ID: PA4110034) has 186 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 49,500 people using Surface Water sources.
How many people does GREATER JOHNSTOWN WA RIVERSIDE serve? ▼
GREATER JOHNSTOWN WA RIVERSIDE serves 49,500 people in JOHNSTOWN, Pennsylvania. It is a Local-owned system using Surface Water water sources with 21,902 service connections.
What type of violations does GREATER JOHNSTOWN WA RIVERSIDE have? ▼
GREATER JOHNSTOWN WA RIVERSIDE has 186 total violations: 0 health-based violations (MCL exceedances or treatment failures), 174 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GREATER JOHNSTOWN WA RIVERSIDE water? ▼
No. GREATER JOHNSTOWN WA RIVERSIDE was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does GREATER JOHNSTOWN WA RIVERSIDE use? ▼
GREATER JOHNSTOWN WA RIVERSIDE 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