Public water system record

Lake Caroline

Serves Lake Caroline, Caroline County, VA · 2,933 people served

Federal records show no health-based violations and no monitoring or reporting issues for Lake Caroline in the last ten years.

  • VA6033425
  • ROCKVILLE
  • VA
  • 2,933 served

System profile

Source water Surface water
ZIP 23146
EPA system ID VA6033425

Verify this system on EPA ECHO →

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

Key facts

  • Lake Caroline draws water from 3 wells and 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by Virginia, September 2005.
  • Record on file since 1977, with 54 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 1,181 service lines.

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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.

None since October 2016, and no monitoring or reporting violations either.

Full record since 1977

EPA's records for Lake Caroline go back to 1977. Before October 20, 2016 they list 54 health-based violations (54 resolved) and 37 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
1980s 0 28
1990s 1 2
2000s 53 3
2010 to October 19, 2016 0 2

Most recent health-based violation before October 20, 2016: Haloacetic Acids (HAA5), began April 2009, Resolved.

Show all 54 health-based violations before October 20, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 111 µg/L, federal limit 60 µg/L (1.9 times the limit)
Apr 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 136 µg/L, federal limit 80 µg/L (1.7 times the limit)
Apr 1, 2009 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2009 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 157 µg/L, federal limit 60 µg/L (2.6 times the limit)
Jan 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 174 µg/L, federal limit 80 µg/L (2.2 times the limit)
Jan 1, 2009 Resolved
CARBON, TOTAL
Treatment technique failure
Oct 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 154 µg/L, federal limit 60 µg/L (2.6 times the limit)
Oct 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 181 µg/L, federal limit 80 µg/L (2.3 times the limit)
Oct 1, 2008 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 147 µg/L, federal limit 60 µg/L (2.5 times the limit)
Jul 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 168 µg/L, federal limit 80 µg/L (2.1 times the limit)
Jul 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Apr 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Apr 1, 2008 Resolved
CARBON, TOTAL
Treatment technique failure
Apr 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jan 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jan 1, 2008 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2008 Resolved
CARBON, TOTAL
Treatment technique failure
Oct 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 209 µg/L, federal limit 80 µg/L (2.6 times the limit)
Oct 1, 2007 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 210 µg/L, federal limit 60 µg/L (3.5 times the limit)
Oct 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 224 µg/L, federal limit 80 µg/L (2.8 times the limit)
Jul 1, 2007 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 221 µg/L, federal limit 60 µg/L (3.7 times the limit)
Jul 1, 2007 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2007 Resolved
CARBON, TOTAL
Treatment technique failure
Apr 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 209 µg/L, federal limit 80 µg/L (2.6 times the limit)
Apr 1, 2007 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 213 µg/L, federal limit 60 µg/L (3.6 times the limit)
Apr 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 201 µg/L, federal limit 80 µg/L (2.5 times the limit)
Jan 1, 2007 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 183 µg/L, federal limit 60 µg/L (3.1 times the limit)
Jan 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 189 µg/L, federal limit 80 µg/L (2.4 times the limit)
Oct 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 166 µg/L, federal limit 60 µg/L (2.8 times the limit)
Oct 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jul 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jul 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Apr 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Apr 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jan 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jan 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Oct 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Oct 1, 2005 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jul 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jul 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Apr 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Apr 1, 2005 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jan 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jan 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jul 1, 2004 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jul 1, 2004 Resolved

4 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Virginia regulators took 1 formal enforcement action against Lake Caroline in 2005, filed as 2 records in EPA's data. The most recent was a compliance order (no penalty) in September 2005.

Date By Action Violations covered
Sep 2, 2005 Virginia Compliance order (no penalty) 54 violations (53 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule

Where the water comes from

Lake Caroline draws water from 3 wells and 1 surface water intake. It also has an emergency connection to Caroline Utility System.

Emergency or part-time connections to

Annual water quality report

Lake Caroline 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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 Virginia.