Public water system record

Camelot III

Serves an area of Rockingham County, NH · 33 people served

Federal records show 5 health-based violations and no monitoring/reporting issues for Camelot III in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.

  • NH2542190
  • DERRY
  • NH
  • 33 served

System profile

Source water Groundwater
ZIP 03038
EPA system ID NH2542190

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
5
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Camelot III draws water from 1 well.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit), 2018.
  • Most recent formal enforcement: compliance order (no penalty) by New Hampshire, May 2016.
  • Record on file since 2015, with 8 health-based violations before October 19, 2016.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Lead and Copper Rule
Treatment technique failure
350 Oct 8, 2020 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
330 Jul 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Jan 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jul 1, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Jun 7, 2015 Resolved No

Full record since 2015

EPA's records for Camelot III go back to 2015. Before October 19, 2016 they list 8 health-based violations (8 resolved) and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 8 2
October 19, 2016 to 2019 3 0
2020s 1 0

Most recent health-based violation before October 19, 2016: Arsenic, began April 2016, Resolved.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.025 mg/L, federal limit 0.01 mg/L (2.5 times the limit)
Apr 1, 2016 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.03 mg/L, federal limit 0.01 mg/L (3 times the limit)
Jan 1, 2016 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
Oct 1, 2015 Resolved
Groundwater Rule
Treatment technique failure
Aug 1, 2015 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.024 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
Jul 1, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jun 7, 2015 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
Jan 4, 2015 Resolved

Enforcement actions

New Hampshire regulators took 1 formal enforcement action against Camelot III in 2016, filed as 7 records in EPA's data. The most recent was a compliance order (no penalty) in May 2016.

Date By Action Violations covered
May 18, 2016 New Hampshire Compliance order (no penalty) 7 violations (6 health-based): Arsenic, Public Notice, Groundwater Rule

What the violations mean

Total Trihalomethanes (TTHMs)

2 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Lead and Copper Rule

1 incident

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Arsenic

1 incident

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Groundwater Rule

1 incident

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Camelot III draws water from 1 well.

Annual water quality report

Camelot III must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Camelot III for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Hampshire.