Transient Non-Community · PWSID CT1360074

Gibson Hill Park

Serves 100 peopleGroundwaterOwner: PrivateBoston, Massachusetts

1 open treatment violation.

Open for: Lead service line inventory. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2010: 76 violations. 1 over the limit · 4 treatment lapses · 60 missed or late tests · 11 notices or reports. Most recent began 2024-12-30.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

1Over the limit

4Treatment lapse1 open

60Missed or late test

11Notice or report1 open

More violations on record than 99% of active water systems in Massachusetts. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.

1% over the limit · 15% treatment lapse · 479% missed or late test · 6014% notice or report · 11

Across Massachusetts, 79% of violations are missed or late tests and 4% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 9 results on file · action level 15 ppb

6 ppb

5 ppb

4.6 ppb

1.1 ppb

0 ppb

Open now (2)

2024-10-17Lead service line inventoryRPTOpen
2024-10-17Lead service line inventoryTTOpen

Every violation on record

2024-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2024-10-17Lead service line inventoryRPTOpen
2024-10-17Lead service line inventoryTTOpen
2024-09-01Revised Total Coliform RuleMONBack in compliance
2024-08-01Revised Total Coliform RuleMONBack in compliance
2024-06-01Revised Total Coliform RuleMCLBack in compliance
2023-05-07Revised Total Coliform RuleRPTBack in compliance
2023-03-16Public NoticePN Violation for NPDWR ViolationBack in compliance
2022-10-01Revised Total Coliform RuleMONBack in compliance
2021-10-01Revised Total Coliform RuleMONBack in compliance
2020-12-16Public NoticePN Violation for NPDWR ViolationBack in compliance
2020-08-10Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
2020-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01MetribuzinMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DicambaMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01AldrinMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01PropachlorMonitoring, RegularPeriod ended · no return to compliance on file

Show the other 47 entries

2020-01-01ButachlorMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DieldrinMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-013-HydroxycarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01AldicarbMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01MetolachlorMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Aldicarb sulfoneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Aldicarb sulfoxideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01MethomylMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01CarbarylMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
2019-09-13Revised Total Coliform RuleTTBack in compliance
2019-08-20E. ColiMonitoring, Source Water (GWR)Back in compliance
2019-01-21Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
2018-12-16Revised Total Coliform RuleTTBack in compliance
2018-11-25Revised Total Coliform RuleTTBack in compliance
2018-11-22E. ColiMonitoring, Source Water (GWR)Back in compliance
2018-11-01E. ColiMonitoring, Source Water (GWR)Back in compliance
2017-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
2016-04-01Combined Radium (-226 and -228) ×2Monitoring, RegularBack in compliance
2016-04-01Combined Uranium ×2Monitoring, RegularBack in compliance
2016-04-01Gross Alpha, Excl. Radon and U ×2Monitoring, RegularBack in compliance
2016-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
2016-01-01Combined UraniumMonitoring, RegularBack in compliance
2016-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
2013-05-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2012-04-21Public NoticePN Violation for NPDWR ViolationBack in compliance
2010-08-12Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served	100
Service connections	86
Water source	Groundwater
System type	Transient Non-Community
Owner	Private
Status	Active
City	Boston
EPA ZIP on file	02111

Areas served

Sterling, Windham County

Reading this record

Gibson Hill Park is a transient non-community that draws from groundwater and serves about 100 people in Boston, Massachusetts. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.