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DENVER BORO

PWS ID: PA7360017 · DENVER, Pennsylvania 17517

DENVER BORO serves 3,861 people in DENVER, Pennsylvania using Surface Water water sources. It has 101 recorded EPA violations, including 3 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (3 compounds found).

Water Quality Snapshot: DENVER BORO

DENVER BORO is a local-owned community water system that delivers drinking water to 3,861 residents in DENVER, Pennsylvania (Lancaster County) through 1,492 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 101 total violations for this system , of which 3 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 92 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 10 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 3 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 9.39 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. DENVER BORO's 101 violations sit below 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

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

Population Served
3,861
Total Violations
101
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,492
County
Lancaster
School/Daycare
No
MCL Violations
1
Monitoring Violations
92
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 10 2004
Total Haloacetic Acids (HAA5) MR 10 2017
TTHM MR 10 2017
Coliform (TCR) MR 8 2004
Di(2-ethylhexyl) phthalate MR 7 2023
Di(2-ethylhexyl) adipate MR 7 2023
CARBON, TOTAL MR 4 2016
Nitrate MR 3 2006
Groundwater Rule MR 2 2024
Antimony, Total MR 2 1994
LASSO MR 2 1995
Benzo(a)pyrene MR 2 1995
Pentachlorophenol MR 2 1995
ETHYLENE DIBROMIDE MR 2 1995
Aldicarb sulfoxide MR 2 1995
Aldicarb sulfone MR 2 1995
Hexachlorocyclopentadiene MR 2 1995
Thallium, Total MR 2 1994
Surface Water Treatment Rule TT 2 2020
Nickel MR 2 1994
Consumer Confidence Rule Other 2 1999
Beryllium, Total MR 2 1994
Chlorine MR 1 2004
Interim Enhanced Surface Water Treatment Rule MR 1 2008
p-Dichlorobenzene MR 1 1990
1,1-Dichloroethylene MR 1 1990
1,2-Dichloroethane MR 1 1990
Carbon tetrachloride MR 1 1990
Trichloroethylene MR 1 1990
Public Notice Other 1 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFOA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/3/2025 <9 µg/L 9 µg/L Not Detected
PFTrDA 9/3/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 9/3/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 9/3/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/3/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/3/2025 <9 µg/L 9 µg/L Not Detected
8:2 FTS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/3/2025 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 9/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 9/3/2025 0.0043 µg/L 0.003 µg/L 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 DENVER BORO.

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 PA7360017 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 DENVER BORO 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
2024 Groundwater Rule MR 2 SDWIS / PA7360017 / 0700
2023 Di(2-ethylhexyl) phthalate MR 7 SDWIS / PA7360017 / 2039
2023 Di(2-ethylhexyl) adipate MR 7 SDWIS / PA7360017 / 2035
2020 Surface Water Treatment Rule TT 2 SDWIS / PA7360017 / 0200
2020 Public Notice Other 1 SDWIS / PA7360017 / 7500
2017 Total Haloacetic Acids (HAA5) MR 10 SDWIS / PA7360017 / 2456
2017 TTHM MR 10 SDWIS / PA7360017 / 2950
2016 CARBON, TOTAL MR 4 SDWIS / PA7360017 / 2920
2008 Interim Enhanced Surface Water Treatment Rule MR 1 SDWIS / PA7360017 / 0300
2006 Nitrate MR 3 SDWIS / PA7360017 / 1040
2004 Surface Water Treatment Rule MR 10 SDWIS / PA7360017 / 0200
2004 Coliform (TCR) MR 8 SDWIS / PA7360017 / 3100
2004 Chlorine MR 1 SDWIS / PA7360017 / 0999
1999 Consumer Confidence Rule Other 2 SDWIS / PA7360017 / 7000
1996 Nitrate MCL 1 SDWIS / PA7360017 / 1040

How DENVER BORO Compares

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

Metric DENVER BORO Pennsylvania avg Federal benchmark
Total violations 101 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 3 8.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 3 compounds 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,861 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 DENVER BORO water safe to drink? ▼
DENVER BORO (PWS ID: PA7360017) has 101 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 3 PFAS compounds found. This system serves 3,861 people using Surface Water sources.
How many people does DENVER BORO serve? ▼
DENVER BORO serves 3,861 people in DENVER, Pennsylvania. It is a Local-owned system using Surface Water water sources with 1,492 service connections.
What type of violations does DENVER BORO have? ▼
DENVER BORO has 101 total violations: 3 health-based violations (MCL exceedances or treatment failures), 92 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DENVER BORO water? ▼
Yes. UCMR5 testing detected 3 PFAS compounds in DENVER BORO's water supply: PFBS, PFPeA, lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does DENVER BORO use? ▼
DENVER BORO 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