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Community Water System · PWS PA1090097

Nwwa Olde Colonial Greene

North Wales, Pennsylvania 19454 - drinking water served from groundwater sources to 900 people, tracked in EPA SDWIS and UCMR5.

900
People served
251
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 251 drinking-water violations at Nwwa Olde Colonial Greene, 1% of them health-based - above the Pennsylvania per-system average.

251
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
900
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Nwwa Olde Colonial Greene

Nwwa Olde Colonial Greene is a public/private-owned community water system that delivers drinking water to 900 residents in North Wales, Pennsylvania (Bucks County) through 309 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 251 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 232 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 31 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Nwwa Olde Colonial Greene's 251 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.

Population Served
900
Total Violations
251
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
309
County
Bucks
School/Daycare
No
MCL Violations
0
Monitoring Violations
232
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 31 2008
Consumer Confidence Rule Other 11 2016
Groundwater Rule MR 11 2014
Public Notice Other 6 2007
Endrin MR 5 2014
BHC-GAMMA MR 5 2014
Toxaphene MR 5 2014
2,4-D MR 5 2014
2,4,5-TP MR 5 2014
Methoxychlor MR 5 2014
Gross Alpha, Excl. Radon and U MR 4 2006
Dalapon MR 4 2014
Diquat MR 4 2014
Di(2-ethylhexyl) adipate MR 4 2014
OXAMYL MR 4 2014
Di(2-ethylhexyl) phthalate MR 4 2014
Picloram MR 4 2014
Dinoseb MR 4 2014
Atrazine MR 4 2014
Heptachlor MR 4 2014
Heptachlor epoxide MR 4 2014
Benzo(a)pyrene MR 4 2014
Pentachlorophenol MR 4 2014
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2014
ETHYLENE DIBROMIDE MR 4 2014
HEXACHLOROBENZENE MR 4 2014
Hexachlorocyclopentadiene MR 4 2014
Total Polychlorinated Biphenyls (PCB) MR 4 2014
LASSO MR 4 2014
Carbofuran MR 4 2014

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 Nwwa Olde Colonial Greene.

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 PA1090097 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 Nwwa Olde Colonial Greene 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
2016 Consumer Confidence Rule Other 11 SDWIS / PA1090097 / 7000
2014 Groundwater Rule MR 11 SDWIS / PA1090097 / 0700
2014 Endrin MR 5 SDWIS / PA1090097 / 2005
2014 BHC-GAMMA MR 5 SDWIS / PA1090097 / 2010
2014 Toxaphene MR 5 SDWIS / PA1090097 / 2020
2014 2,4-D MR 5 SDWIS / PA1090097 / 2105
2014 2,4,5-TP MR 5 SDWIS / PA1090097 / 2110
2014 Methoxychlor MR 5 SDWIS / PA1090097 / 2015
2014 Dalapon MR 4 SDWIS / PA1090097 / 2031
2014 Diquat MR 4 SDWIS / PA1090097 / 2032
2014 Di(2-ethylhexyl) adipate MR 4 SDWIS / PA1090097 / 2035
2014 OXAMYL MR 4 SDWIS / PA1090097 / 2036
2014 Di(2-ethylhexyl) phthalate MR 4 SDWIS / PA1090097 / 2039
2014 Picloram MR 4 SDWIS / PA1090097 / 2040
2014 Dinoseb MR 4 SDWIS / PA1090097 / 2041

How Nwwa Olde Colonial Greene Compares

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

Metric Nwwa Olde Colonial Greene Pennsylvania avg Federal benchmark
Total violations 251 150.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 900 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 Nwwa Olde Colonial Greene water safe to drink? ▼
Nwwa Olde Colonial Greene (PWS ID: PA1090097) has 251 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 900 people using Groundwater sources.
How many people does Nwwa Olde Colonial Greene serve? ▼
Nwwa Olde Colonial Greene serves 900 people in North Wales, Pennsylvania. It is a Public/Private-owned system using Groundwater water sources with 309 service connections.
What type of violations does Nwwa Olde Colonial Greene have? ▼
Nwwa Olde Colonial Greene has 251 total violations: 2 health-based violations (MCL exceedances or treatment failures), 232 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Nwwa Olde Colonial Greene water? ▼
No PFAS testing data is available for Nwwa Olde Colonial Greene under the EPA's UCMR5 monitoring program.
What water source does Nwwa Olde Colonial Greene use? ▼
Nwwa Olde Colonial Greene uses Groundwater 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. 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.