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Community Water System · PWS NH2003020

Acorn Terrace

Operator location Rochester, New Hampshire - smaller served population (≤ 999) at 215 people served; 157 SDWIS violations on record from groundwater sources.

215
People served (this PWS)
157
EPA violations (this PWS)
9
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Acorn Terrace standing, high SDWIS violation third

215 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 6% is middle-third health share (≤ 23%).

The verdict

Acorn Terrace sits in the upper third of the sitemap cohort by violation count (157), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (215; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 6% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

157
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
215
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
Community
Owner Type
Private
Connections
88
County
Strafford
School/Daycare
No
MCL Violations
4
Monitoring Violations
141
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 6 2003
o-Dichlorobenzene MR 6 2003
p-Dichlorobenzene MR 6 2003
Vinyl chloride MR 6 2003
1,2-Dichloroethane MR 6 2003
1,1,1-Trichloroethane MR 6 2003
1,2-Dichloropropane MR 6 2003
Tetrachloroethylene MR 6 2003
Toluene MR 6 2003
Ethylbenzene MR 6 2003
Styrene MR 6 2003
1,2,4-Trichlorobenzene MR 6 2003
DICHLOROMETHANE MR 6 2003
1,1-Dichloroethylene MR 6 2003
trans-1,2-Dichloroethylene MR 6 2003
Carbon tetrachloride MR 6 2003
Trichloroethylene MR 6 2003
1,1,2-Trichloroethane MR 6 2003
CHLOROBENZENE MR 6 2003
Xylenes, Total MR 6 2003
Benzene MR 6 2003
Lead and Copper Rule TT 5 2007
Lead and Copper Rule MR 5 2006
Coliform (TCR) MCL 4 2010
E. COLI MR 4 2022
Coliform (TCR) MR 4 2010
Public Notice Other 2 2007
Nitrate MR 2 1994

Violation Count vs. the National Corpus

Acorn Terrace has 157 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 6% of this system's own violations are health-based (9 of 157), 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)

157 Higher than most more violations than 82% 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

Population served record for Acorn Terrace

EPA SDWIS lists 215 people served and 88 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

Sources: EPA SDWIS

Nationwide peers

157 violations · 215 served: nearest cross-state SDWIS matches.

Cross-state systems with comparable violation load

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

What to do with Acorn Terrace

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