Community Water System · PWS PA7010046

Round Top MHP

Monsey, Pennsylvania 10952 - drinking water served from groundwater sources to 185 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

185
People served: 101
EPA violations: 10
Health-based: Untested
UCMR5 result

The verdict

EPA records 101 drinking-water violations at Round Top MHP, 10% of them health-based - below the Pennsylvania per-system average.

101
Total EPA violations on record: 10%
Health-based (MCL / treatment failure): 185
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Round Top MHP

Round Top MHP is a private-owned community water system that delivers drinking water to 185 residents in Monsey, Pennsylvania (Adams County) through 320 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 101 total violations for this system , of which 10 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 87 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Groundwater Rule, recorded in 10 violations (TT, health-based). 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, 173 of 389 UCMR5-tested systems have reported PFAS detections (44.5%).

Round Top MHP's 101 violations sit below 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

185

Total Violations

101

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Private
Connections: 320
County: Adams
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 87
Treatment Tech Violations: 10

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Groundwater Rule	TT	10	2021
Nitrate	MR	9	1994
Nitrite	MR	8	1994
Chlorine	MR	3	2016
Groundwater Rule	MR	3	2019
Lead and Copper Rule	MR	2	2019
Cadmium	MR	2	1988
Barium	MR	2	1988
Chromium	MR	2	1988
Selenium	MR	2	1988
Fluoride	MR	2	1988
1,2,4-Trichlorobenzene	MR	2	1994
cis-1,2-Dichloroethylene	MR	2	1994
Xylenes, Total	MR	2	1994
trans-1,2-Dichloroethylene	MR	2	1994
1,1,1-Trichloroethane	MR	2	1994
Trichloroethylene	MR	2	1994
Tetrachloroethylene	MR	2	1994
Toluene	MR	2	1994
1,1-Dichloroethylene	MR	2	1994
1,2-Dichloroethane	MR	2	1994
Carbon tetrachloride	MR	2	1994
1,1,2-Trichloroethane	MR	2	1994
Benzene	MR	2	1994
Ethylbenzene	MR	2	1994
p-Dichlorobenzene	MR	2	1994
1,2-Dichloropropane	MR	2	1994
o-Dichlorobenzene	MR	2	1994
Mercury	MR	2	1988
Styrene	MR	2	1994

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 Round Top 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 PA7010046 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 Round Top MHP 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
2021	Groundwater Rule	TT	10	SDWIS / PA7010046 / 0700
2019	Groundwater Rule	MR	3	SDWIS / PA7010046 / 0700
2019	Lead and Copper Rule	MR	2	SDWIS / PA7010046 / 5000
2016	Chlorine	MR	3	SDWIS / PA7010046 / 0999
2012	Consumer Confidence Rule	Other	1	SDWIS / PA7010046 / 7000
2006	Coliform (TCR)	MR	1	SDWIS / PA7010046 / 3100
1994	Nitrate	MR	9	SDWIS / PA7010046 / 1040
1994	Nitrite	MR	8	SDWIS / PA7010046 / 1041
1994	1,2,4-Trichlorobenzene	MR	2	SDWIS / PA7010046 / 2378
1994	cis-1,2-Dichloroethylene	MR	2	SDWIS / PA7010046 / 2380
1994	Xylenes, Total	MR	2	SDWIS / PA7010046 / 2955
1994	trans-1,2-Dichloroethylene	MR	2	SDWIS / PA7010046 / 2979
1994	1,1,1-Trichloroethane	MR	2	SDWIS / PA7010046 / 2981
1994	Trichloroethylene	MR	2	SDWIS / PA7010046 / 2984
1994	Tetrachloroethylene	MR	2	SDWIS / PA7010046 / 2987

How Round Top MHP Compares

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

Metric	Round Top MHP	Pennsylvania avg	Federal benchmark
Total violations	101	150.6	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	10	8.9	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	44.5%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	185	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 Round Top MHP water safe to drink? ▼

Round Top MHP (PWS ID: PA7010046) has 101 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 185 people using Groundwater sources.

How many people does Round Top MHP serve? ▼

Round Top MHP serves 185 people in Monsey, Pennsylvania. It is a Private-owned system using Groundwater water sources with 320 service connections.

What type of violations does Round Top MHP have? ▼

Round Top MHP has 101 total violations: 10 health-based violations (MCL exceedances or treatment failures), 87 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Round Top MHP water? ▼

No PFAS testing data is available for Round Top MHP under the EPA's UCMR5 monitoring program.

What water source does Round Top MHP use? ▼

Round Top 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.

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.