Here is what the EPA's own data shows about tap water in Berlin. According to EPA SDWIS data retrieved October 2026, Berlin is served by 3 active community water systems, together reported to serve about 8,113 people.
As of October 2026, EPA records show 250 violations across the community water system(s) serving Berlin, going back to the earliest EPA record. 10 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.
Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2024. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
Monitoring Chloromethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Bromomethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Chloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Naphthalene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring METHYL TERT-BUTYL ETHER: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,2,4-Trichlorobenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring cis-1,2-Dichloroethylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Dibromomethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1-Dichloropropene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,3-Dichloropropane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,3-DICHLOROPROPENE: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,2,3-Trichloropropane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 2,2-Dichloropropane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,2,4-Trimethylbenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring n-Butylbenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,3,5-Trimethylbenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Chloroform: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Bromoform: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Bromodichloromethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Dibromochloromethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring p-Xylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring DICHLOROMETHANE: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring o-Chlorotoluene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring p-Chlorotoluene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring m-Dichlorobenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring o-Dichlorobenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring p-Dichlorobenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Vinyl chloride: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1-Dichloroethylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1-Dichloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring trans-1,2-Dichloroethylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,2-Dichloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1,1-Trichloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Carbon tetrachloride: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,2-Dichloropropane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Trichloroethylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1,2-Trichloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1,1,2-Tetrachloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Tetrachloroethylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring 1,1,2,2-Tetrachloroethane: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring CHLOROBENZENE: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Benzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Toluene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Ethylbenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Bromobenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring m-Xylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Styrene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring o-Xylene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring n-Propylbenzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between January 2021 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between January 2021 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 7 times between August 2004 and July 2022. All have since returned to compliance, per EPA records.
Monitoring Combined Radium (-226 and -228): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2022. All have since returned to compliance, per EPA records.
Monitoring Combined Uranium: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2022. All have since returned to compliance, per EPA records.
Monitoring Gross Alpha, Excl. Radon and U: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2022. All have since returned to compliance, per EPA records.
Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between June 2006 and December 2010. EPA records do not show all of these as returned to compliance.
Worthington Fire District
2,875 served · surface water · PWSID CT0070031
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 9 times between August 2004 and August 2025. All have since returned to compliance, per EPA records.
Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2024. All have since returned to compliance, per EPA records.
Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between November 2016 and January 2024. All have since returned to compliance, per EPA records.
Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between May 2020 and January 2024. All have since returned to compliance, per EPA records.
Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in November 2021. All have since returned to compliance, per EPA records.
Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2015. All have since returned to compliance, per EPA records.
Pinecrest Condominiums
110 served · groundwater · PWSID CT1698041
Health-based Arsenic: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 8 times between April 2024 and January 2026. The EPA record lists a level of 0.013 MG/L; the limit (MCL) is 0.01 MG/L. EPA records do not show all of these as returned to compliance.
Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2024. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between August 2024 and March 2026. All have since returned to compliance, per EPA records.
Monitoring LEAD AND COPPER RULE REVISIONS: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2024. EPA records do not show all of these as returned to compliance.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2016. All have since returned to compliance, per EPA records.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved October 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.