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Transient Non-Community Water System · PWS NH2307010

Swanzey Lake Camping Area

Operator location Swanzey, New Hampshire - 31% of 26 violations are health-based (upper-third health share (> 23%)); groundwater source; 224 served per SDWIS.

224
People served (this PWS)
26
EPA violations (this PWS)
8
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Swanzey Lake Camping Area standing, mid SDWIS violation third

31% of 26 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 31% is upper-third health share (> 23%).

The verdict

Swanzey Lake Camping Area lands in the middle third by violation volume (26), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (224; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 31% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.

26
Total EPA violations on record
31%
Health-based (MCL / treatment failure)
224
People served by this PWS (SDWIS)
N/A
PFAS compounds detected (UCMR5)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
148
County
Cheshire
School/Daycare
No
MCL Violations
4
Monitoring Violations
11
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 2007
Revised Total Coliform Rule TT 4 2020
Revised Total Coliform Rule RPT 4 2020
Coliform (TCR) MCL 4 2014
Public Notice Other 3 2003
Nitrate MR 2 1996

Violation Count vs. the National Corpus

Swanzey Lake Camping Area has 26 recorded EPA violations, 38% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 61% carry more. 31% of this system's own violations are health-based (8 of 26), and it ranks unranked by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

26 Lower than most fewer violations than 61% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

Health-based violations on Swanzey Lake Camping Area

8 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NH2307010.

Sources: EPA SDWIS

Nationwide peers

26 violations · 224 served: nearest cross-state SDWIS matches.

What to do with Swanzey Lake Camping Area

Use this system's EPA-reported record as a starting filter, not a final verdict.

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater