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Community Water System · PWS PA1090063

Upper Southampton Mun Auth

Southampton, Pennsylvania 18966 - drinking water served from surface water sources to 16,000 people, tracked in EPA SDWIS and UCMR5.

16,000
People served
856
EPA violations
29
Health-based
8 PFAS
UCMR5 result

The verdict

EPA records 856 drinking-water violations at Upper Southampton Mun Auth, 3% of them health-based - above the Pennsylvania per-system average, and UCMR5 testing detected 8 PFAS compounds.

856
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
16,000
People served by this system
8
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Upper Southampton Mun Auth

Upper Southampton Mun Auth is a local-owned community water system that delivers drinking water to 16,000 residents in Southampton, Pennsylvania (Bucks County) through 5,201 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 856 total violations for this system , of which 29 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 794 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 Groundwater Rule, recorded in 45 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 8 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 19.3 ppt (parts per trillion). 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. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%).

Upper Southampton Mun Auth's 856 violations sit above the Pennsylvania average.

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

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

Population Served
16,000
Total Violations
856
Health-Based Violations
29
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,201
County
Bucks
School/Daycare
No
MCL Violations
21
Monitoring Violations
794
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule MR 45 2025
Coliform (TCR) MCL 21 2014
TTHM MR 19 2013
Endrin MR 15 2017
BHC-GAMMA MR 15 2017
Total Haloacetic Acids (HAA5) MR 15 2013
Methoxychlor MR 15 2017
Simazine MR 14 2017
Di(2-ethylhexyl) phthalate MR 14 2017
LASSO MR 14 2017
Heptachlor epoxide MR 14 2017
Benzo(a)pyrene MR 14 2017
Di(2-ethylhexyl) adipate MR 14 2017
HEXACHLOROBENZENE MR 14 2017
Hexachlorocyclopentadiene MR 14 2017
Atrazine MR 14 2017
Heptachlor MR 14 2017
Toxaphene MR 13 2014
Public Notice Other 13 2022
DICHLOROMETHANE MR 12 2011
p-Dichlorobenzene MR 12 2011
1,1-Dichloroethylene MR 12 2011
1,1,1-Trichloroethane MR 12 2011
Carbon tetrachloride MR 12 2011
1,2-Dichloropropane MR 12 2011
1,1,2-Trichloroethane MR 12 2011
CHLOROBENZENE MR 12 2011
Ethylbenzene MR 12 2011
Total Polychlorinated Biphenyls (PCB) MR 12 2014
1,2,4-Trichlorobenzene MR 12 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 32 of 232 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/21/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/21/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 7/21/2023 5.10 ppt 3.00 ppt Detected
PFDoA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 7/21/2023 12.80 ppt 4.00 ppt Detected
PFOS 7/21/2023 14.80 ppt 4.00 ppt Detected
6:2 FTS 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxS 7/21/2023 5.00 ppt 3.00 ppt Detected
PFHpS 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeS 7/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 7/21/2023 4.00 ppt 3.00 ppt Detected
NMeFOSAA 7/21/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 7/21/2023 <20.00 ppt 20.00 ppt Not Detected
PFTA 7/21/2023 <8.00 ppt 8.00 ppt Not Detected
4:2 FTS 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/21/2023 7.50 ppt 3.00 ppt Detected
PFEESA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/21/2023 5.00 ppt 3.00 ppt Detected
PFMPA 7/21/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 7/21/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeA 7/21/2023 8.30 ppt 3.00 ppt Detected
PFMBA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/21/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 7/21/2023 <7.00 ppt 7.00 ppt Not Detected
PFBA 7/21/2023 6.40 ppt 5.00 ppt Detected
NMeFOSAA 7/21/2023 <6.00 ppt 6.00 ppt Not Detected
4:2 FTS 7/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 7/21/2023 <8.00 ppt 8.00 ppt Not Detected
PFOA 7/21/2023 14.20 ppt 4.00 ppt Detected
HFPO-DA 7/21/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 7/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 7/21/2023 5.10 ppt 3.00 ppt Detected
PFHxS 7/21/2023 4.70 ppt 3.00 ppt Detected
PFOS 7/21/2023 16.40 ppt 4.00 ppt Detected
PFBS 7/21/2023 7.40 ppt 3.00 ppt 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 Upper Southampton Mun Auth.

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 PA1090063 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 Upper Southampton Mun Auth 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 45 SDWIS / PA1090063 / 0700
2023 Combined Uranium MR 10 SDWIS / PA1090063 / 4006
2022 Public Notice Other 13 SDWIS / PA1090063 / 7500
2022 Lead and Copper Rule MR 6 SDWIS / PA1090063 / 5000
2022 Surface Water Treatment Rule TT 4 SDWIS / PA1090063 / 0200
2019 Revised Total Coliform Rule TT 4 SDWIS / PA1090063 / 8000
2019 Revised Total Coliform Rule RPT 4 SDWIS / PA1090063 / 8000
2017 Endrin MR 15 SDWIS / PA1090063 / 2005
2017 BHC-GAMMA MR 15 SDWIS / PA1090063 / 2010
2017 Methoxychlor MR 15 SDWIS / PA1090063 / 2015
2017 Simazine MR 14 SDWIS / PA1090063 / 2037
2017 Di(2-ethylhexyl) phthalate MR 14 SDWIS / PA1090063 / 2039
2017 LASSO MR 14 SDWIS / PA1090063 / 2051
2017 Heptachlor epoxide MR 14 SDWIS / PA1090063 / 2067
2017 Benzo(a)pyrene MR 14 SDWIS / PA1090063 / 2306

How Upper Southampton Mun Auth Compares

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

Metric Upper Southampton Mun Auth Pennsylvania avg Federal benchmark
Total violations 856 150.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 29 8.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 8 compounds 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 16,000 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Upper Southampton Mun Auth water safe to drink? ▼
Upper Southampton Mun Auth (PWS ID: PA1090063) has 856 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 8 PFAS compounds found. This system serves 16,000 people using Surface Water sources.
How many people does Upper Southampton Mun Auth serve? ▼
Upper Southampton Mun Auth serves 16,000 people in Southampton, Pennsylvania. It is a Local-owned system using Surface Water water sources with 5,201 service connections.
What type of violations does Upper Southampton Mun Auth have? ▼
Upper Southampton Mun Auth has 856 total violations: 29 health-based violations (MCL exceedances or treatment failures), 794 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Upper Southampton Mun Auth water? ▼
Yes. UCMR5 testing detected 8 PFAS compounds in Upper Southampton Mun Auth's water supply: PFHxA, PFOA, PFOS, PFHxS, PFHpA, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Upper Southampton Mun Auth use? ▼
Upper Southampton Mun Auth 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.