PlainWater
States → EPA Region 5 — Tribal Water Systems

Community Water System · PWS 055294501

North Water Treatment Plant (Nwtp)

Prior Lake, EPA Region 5 — Tribal Water Systems 55372 - drinking water served from groundwater sources to 300 people, tracked in EPA SDWIS and UCMR5.

300
People served
148
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 148 drinking-water violations at North Water Treatment Plant (Nwtp).

148
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
300
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: North Water Treatment Plant (Nwtp)

North Water Treatment Plant (Nwtp) is a native american-owned community water system that delivers drinking water to 300 residents in Prior Lake, EPA Region 5 — Tribal Water Systems through 150 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 148 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 144 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 4 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 5 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
300
Total Violations
148
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
150
School/Daycare
No
MCL Violations
0
Monitoring Violations
144
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 4 1996
BHC-GAMMA MR 4 2017
Nitrate MR 4 2019
Endrin MR 4 2017
Methoxychlor MR 4 2017
Toxaphene MR 4 2017
Dalapon MR 4 2017
Glyphosate MR 4 2017
Di(2-ethylhexyl) adipate MR 4 2017
Picloram MR 4 2017
Dinoseb MR 4 2017
Hexachlorocyclopentadiene MR 4 2017
Aldicarb sulfoxide MR 4 2017
Aldicarb sulfone MR 4 2017
Aldicarb MR 4 2017
Atrazine MR 4 2017
2,3,7,8-TCDD MR 4 2017
HEXACHLOROBENZENE MR 4 2017
Total Polychlorinated Biphenyls (PCB) MR 4 2017
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2017
Chlordane MR 4 2017
Coliform (TCR) MR 4 1998
Benzo(a)pyrene MR 4 2017
Di(2-ethylhexyl) phthalate MR 4 2017
LASSO MR 4 2017
Carbofuran MR 4 2017
2,4,5-TP MR 4 2017
2,4-D MR 4 2017
Heptachlor MR 4 2017
Diquat MR 4 2017

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 Water Treatment Plant (Nwtp).

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 055294501 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 5 — Tribal Water Systems Drinking Water Authority

EPA Region 5 — Tribal Water Systems's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 05 regulator via EPA SDWIS

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
2019 Nitrate MR 4 SDWIS / 055294501 / 1040
2017 BHC-GAMMA MR 4 SDWIS / 055294501 / 2010
2017 Endrin MR 4 SDWIS / 055294501 / 2005
2017 Methoxychlor MR 4 SDWIS / 055294501 / 2015
2017 Toxaphene MR 4 SDWIS / 055294501 / 2020
2017 Dalapon MR 4 SDWIS / 055294501 / 2031
2017 Glyphosate MR 4 SDWIS / 055294501 / 2034
2017 Di(2-ethylhexyl) adipate MR 4 SDWIS / 055294501 / 2035
2017 Picloram MR 4 SDWIS / 055294501 / 2040
2017 Dinoseb MR 4 SDWIS / 055294501 / 2041
2017 Hexachlorocyclopentadiene MR 4 SDWIS / 055294501 / 2042
2017 Aldicarb sulfoxide MR 4 SDWIS / 055294501 / 2043
2017 Aldicarb sulfone MR 4 SDWIS / 055294501 / 2044
2017 Aldicarb MR 4 SDWIS / 055294501 / 2047
2017 Atrazine MR 4 SDWIS / 055294501 / 2050

How North Water Treatment Plant (Nwtp) Compares

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

Metric North Water Treatment Plant (Nwtp) EPA Region 5 — Tribal Water Systems avg Federal benchmark
Total violations 148 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 300 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 5 — Tribal Water Systems.

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 North Water Treatment Plant (Nwtp) water safe to drink? ▼
North Water Treatment Plant (Nwtp) (PWS ID: 055294501) has 148 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 300 people using Groundwater sources.
How many people does North Water Treatment Plant (Nwtp) serve? ▼
North Water Treatment Plant (Nwtp) serves 300 people in Prior Lake, EPA Region 5 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 150 service connections.
What type of violations does North Water Treatment Plant (Nwtp) have? ▼
North Water Treatment Plant (Nwtp) has 148 total violations: 0 health-based violations (MCL exceedances or treatment failures), 144 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in North Water Treatment Plant (Nwtp) water? ▼
No PFAS testing data is available for North Water Treatment Plant (Nwtp) under the EPA's UCMR5 monitoring program.
What water source does North Water Treatment Plant (Nwtp) use? ▼
North Water Treatment Plant (Nwtp) 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.