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COLBY POND

PWS ID: NH0582010 · ATKINSON, New Hampshire 03811

COLBY POND serves 485 people in ATKINSON, New Hampshire using Groundwater water sources. It has 197 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COLBY POND

COLBY POND is a private-owned community water system that delivers drinking water to 485 residents in ATKINSON, New Hampshire (Rockingham County) through 194 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 197 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 197 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Nitrate, recorded in 7 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 New Hampshire, EPA tracks 2,453 public water systems serving 1,242,123 people, with 155,970 cumulative violations and 29,649 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 63.6 violations. COLBY POND's 197 violations sit above the New Hampshire average. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%). 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
485
Total Violations
197
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
194
County
Rockingham
School/Daycare
No
MCL Violations
0
Monitoring Violations
197
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 7 2016
Arsenic MR 4 2014
Gross Alpha, Excl. Radon and U MR 4 2016
Combined Radium (-226 and -228) MR 4 2016
Barium MR 4 2014
Chromium MR 4 2014
CYANIDE MR 4 2014
Fluoride MR 4 2014
Mercury MR 4 2014
Selenium MR 4 2014
Antimony, Total MR 4 2014
Beryllium, Total MR 4 2014
Thallium, Total MR 4 2014
Cadmium MR 4 2014
Endrin MR 3 1997
BHC-GAMMA MR 3 1997
cis-1,2-Dichloroethylene MR 3 1997
Methoxychlor MR 3 1997
Xylenes, Total MR 3 1997
Glyphosate MR 3 1997
p-Dichlorobenzene MR 3 1997
Simazine MR 3 1997
Di(2-ethylhexyl) phthalate MR 3 1997
trans-1,2-Dichloroethylene MR 3 1997
1,2-Dichloroethane MR 3 1997
Hexachlorocyclopentadiene MR 3 1997
Carbon tetrachloride MR 3 1997
Carbofuran MR 3 1997
1,2-Dichloropropane MR 3 1997
Trichloroethylene MR 3 1997

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 COLBY POND.

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 NH0582010 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Hampshire Drinking Water Authority

New Hampshire'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 NH regulator via EPA SDWIS

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
2016 Nitrate MR 7 SDWIS / NH0582010 / 1040
2016 Gross Alpha, Excl. Radon and U MR 4 SDWIS / NH0582010 / 4000
2016 Combined Radium (-226 and -228) MR 4 SDWIS / NH0582010 / 4010
2014 Arsenic MR 4 SDWIS / NH0582010 / 1005
2014 Barium MR 4 SDWIS / NH0582010 / 1010
2014 Chromium MR 4 SDWIS / NH0582010 / 1020
2014 CYANIDE MR 4 SDWIS / NH0582010 / 1024
2014 Fluoride MR 4 SDWIS / NH0582010 / 1025
2014 Mercury MR 4 SDWIS / NH0582010 / 1035
2014 Selenium MR 4 SDWIS / NH0582010 / 1045
2014 Antimony, Total MR 4 SDWIS / NH0582010 / 1074
2014 Beryllium, Total MR 4 SDWIS / NH0582010 / 1075
2014 Thallium, Total MR 4 SDWIS / NH0582010 / 1085
2014 Cadmium MR 4 SDWIS / NH0582010 / 1015
1997 Endrin MR 3 SDWIS / NH0582010 / 2005

How COLBY POND Compares

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

Metric COLBY POND New Hampshire avg Federal benchmark
Total violations 197 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 12.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 45.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 485 506 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,453 regulated public water systems in New Hampshire.

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 COLBY POND water safe to drink? ▼
COLBY POND (PWS ID: NH0582010) has 197 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 485 people using Groundwater sources.
How many people does COLBY POND serve? ▼
COLBY POND serves 485 people in ATKINSON, New Hampshire. It is a Private-owned system using Groundwater water sources with 194 service connections.
What type of violations does COLBY POND have? ▼
COLBY POND has 197 total violations: 0 health-based violations (MCL exceedances or treatment failures), 197 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COLBY POND water? ▼
No PFAS testing data is available for COLBY POND under the EPA's UCMR5 monitoring program.
What water source does COLBY POND use? ▼
COLBY POND 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial