PROSPECT MOUNTAIN
PWS ID: VT0020671 · WILLIAMSTOWN, Vermont 01267
PROSPECT MOUNTAIN serves 75 people in WILLIAMSTOWN, Vermont using Groundwater water sources. It has 158 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: PROSPECT MOUNTAIN
PROSPECT MOUNTAIN is a private-owned transient non-community water system that delivers drinking water to 75 residents in WILLIAMSTOWN, Vermont (Bennington County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 158 total violations for this system , of which 5 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 142 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.
The most frequently cited contaminant at this system is Coliform (TCR), recorded in 79 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 Vermont, EPA tracks 1,357 public water systems serving 646,999 people, with 153,729 cumulative violations and 16,917 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 113.3 violations. PROSPECT MOUNTAIN's 158 violations sit above the Vermont average. Statewide, 3 of 37 UCMR5-tested systems have reported PFAS detections (8.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Bennington
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 142
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 79 | 2015 |
| Nitrate | MR | 54 | 2020 |
| Nitrite | MR | 5 | 2001 |
| Coliform (TCR) | MCL | 5 | 2008 |
| Public Notice | Other | 4 | 2007 |
| Revised Total Coliform Rule | MON | 4 | 2022 |
| Nitrate | Other | 4 | 1999 |
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 PROSPECT MOUNTAIN.
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 VT0020671 on SDWISSource: EPA SDWIS Federal Reports Search
Vermont Drinking Water Authority
Vermont'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 VT regulator via EPA SDWISViolation 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 |
|---|---|---|---|---|
| 2022 | Revised Total Coliform Rule | MON | 4 | SDWIS / VT0020671 / 8000 |
| 2020 | Nitrate | MR | 54 | SDWIS / VT0020671 / 1040 |
| 2015 | Coliform (TCR) | MR | 79 | SDWIS / VT0020671 / 3100 |
| 2008 | Coliform (TCR) | MCL | 5 | SDWIS / VT0020671 / 3100 |
| 2007 | Public Notice | Other | 4 | SDWIS / VT0020671 / 7500 |
| 2001 | Nitrite | MR | 5 | SDWIS / VT0020671 / 1041 |
| 1999 | Nitrate | Other | 4 | SDWIS / VT0020671 / 1040 |
How PROSPECT MOUNTAIN Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | PROSPECT MOUNTAIN | Vermont avg | Federal benchmark |
|---|---|---|---|
| Total violations | 158 | 113.3 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 5 | 12.5 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 8.1% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 75 | 477 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,357 regulated public water systems in Vermont.
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
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Related Data for Vermont
Read our methodology — how this data is sourced, computed, and verified.