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RILEY`S MHP

PWS ID: NC0368160 · CHAPEL HILL, North Carolina 27516

RILEY`S MHP serves 65 people in CHAPEL HILL, North Carolina using Groundwater water sources. It has 171 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: RILEY`S MHP

RILEY`S MHP is a private-owned community water system that delivers drinking water to 65 residents in CHAPEL HILL, North Carolina (Orange County) through 25 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 171 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 106 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 Consumer Confidence Rule, recorded in 32 violations (Other). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across North Carolina, EPA tracks 5,020 public water systems serving 9,877,724 people, with 524,053 cumulative violations and 38,492 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 104.4 violations. RILEY`S MHP's 171 violations sit above the North Carolina average. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%). 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
65
Total Violations
171
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
25
County
Orange
School/Daycare
No
MCL Violations
0
Monitoring Violations
106
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 32 2024
Public Notice Other 30 2024
Coliform (TCR) MR 18 2012
Lead and Copper Rule MR 10 2021
Chlorine MR 10 2012
Nitrite MR 6 2000
Combined Radium (-226 and -228) MR 4 2020
Heptachlor MR 4 2020
Hexachlorocyclopentadiene MR 4 2020
Di(2-ethylhexyl) phthalate MR 4 2020
BHC-GAMMA MR 4 2020
Di(2-ethylhexyl) adipate MR 4 2020
Methoxychlor MR 4 2020
Benzo(a)pyrene MR 4 2020
Heptachlor epoxide MR 4 2020
Endrin MR 4 2020
HEXACHLOROBENZENE MR 4 2020
Gross Alpha, Excl. Radon and U MR 2 2000
Chromium MR 2 1980
Nitrate MR 2 1980
Fluoride MR 2 1980
Barium MR 2 1980
Cadmium MR 2 1980
Arsenic MR 2 1980
Mercury MR 2 1980
Selenium MR 2 1980

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 RILEY`S MHP.

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 NC0368160 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

North Carolina Drinking Water Authority

North Carolina DEQ — Public Water Supply Section is the primacy agency that licenses and inspects RILEY`S MHP under EPA-delegated authority.

Open NC regulator portal

Source: North Carolina DEQ — Public Water Supply Section

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 Consumer Confidence Rule Other 32 SDWIS / NC0368160 / 7000
2024 Public Notice Other 30 SDWIS / NC0368160 / 7500
2021 Lead and Copper Rule MR 10 SDWIS / NC0368160 / 5000
2020 Combined Radium (-226 and -228) MR 4 SDWIS / NC0368160 / 4010
2020 Heptachlor MR 4 SDWIS / NC0368160 / 2065
2020 Hexachlorocyclopentadiene MR 4 SDWIS / NC0368160 / 2042
2020 Di(2-ethylhexyl) phthalate MR 4 SDWIS / NC0368160 / 2039
2020 BHC-GAMMA MR 4 SDWIS / NC0368160 / 2010
2020 Di(2-ethylhexyl) adipate MR 4 SDWIS / NC0368160 / 2035
2020 Methoxychlor MR 4 SDWIS / NC0368160 / 2015
2020 Benzo(a)pyrene MR 4 SDWIS / NC0368160 / 2306
2020 Heptachlor epoxide MR 4 SDWIS / NC0368160 / 2067
2020 Endrin MR 4 SDWIS / NC0368160 / 2005
2020 HEXACHLOROBENZENE MR 4 SDWIS / NC0368160 / 2274
2012 Coliform (TCR) MR 18 SDWIS / NC0368160 / 3100

How RILEY`S MHP Compares

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

Metric RILEY`S MHP North Carolina avg Federal benchmark
Total violations 171 104.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 7.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 65 1,968 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,020 regulated public water systems in North Carolina.

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 RILEY`S MHP water safe to drink? ▼
RILEY`S MHP (PWS ID: NC0368160) has 171 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 65 people using Groundwater sources.
How many people does RILEY`S MHP serve? ▼
RILEY`S MHP serves 65 people in CHAPEL HILL, North Carolina. It is a Private-owned system using Groundwater water sources with 25 service connections.
What type of violations does RILEY`S MHP have? ▼
RILEY`S MHP has 171 total violations: 0 health-based violations (MCL exceedances or treatment failures), 106 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in RILEY`S MHP water? ▼
No PFAS testing data is available for RILEY`S MHP under the EPA's UCMR5 monitoring program.
What water source does RILEY`S MHP use? ▼
RILEY`S MHP 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.

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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.

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