Community Water System · PWSID WA5331790

Twin Pines Mobile Home Park

Serves 25 peopleGroundwaterOwner: PrivateTonasket, Washington

Nothing open that measures the water, but 1 open testing or paperwork violation.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2019: 228 violations. 228 missed or late tests. Most recent began 2025-06-01.

None of them is a measurement of contaminated water.

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

0Over the limit

0Treatment lapse

228Missed or late test1 open

0Notice or report

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

The record, year by year

One square ≈ 14 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.

100% missed or late test · 228

Across Washington, 88% of violations are missed or late tests and 3% are water over a limit.

Open now (1)

2025-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen

Every violation on record

2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
2025-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
2025-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
2025-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
2020-01-01AldicarbMonitoring, RegularBack in compliance
2020-01-01CarbofuranMonitoring, RegularBack in compliance
2020-01-01Aldicarb sulfoneMonitoring, RegularBack in compliance
2020-01-01Aldicarb sulfoxideMonitoring, RegularBack in compliance
2020-01-01OxamylMonitoring, RegularBack in compliance
2020-01-01MethomylMonitoring, RegularBack in compliance
2020-01-01CarbarylMonitoring, RegularBack in compliance
2020-01-01DiquatMonitoring, RegularBack in compliance
2020-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01BromobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file

Show the other 203 entries

2020-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,1-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01o-ChlorotolueneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-012,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ChloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01BromomethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ChloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01DicambaMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-012, 4, 5-TpMonitoring, 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
2020-01-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01MetribuzinMonitoring, 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
2020-01-01PropachlorMonitoring, RegularPeriod ended · no return to compliance on file
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
2020-01-01HeptachlorMonitoring, 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
2020-01-01MetolachlorMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01HexachlorocyclopentadieneMonitoring, 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
2020-01-01Di(2-ethylhexyl) adipateMonitoring, 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
2020-01-01Ethylene DibromideMonitoring, RegularBack in compliance
2020-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
2019-10-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01MetribuzinMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01PropachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01ButachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01DieldrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01MetolachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01DicambaMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01BromobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,1-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01o-ChlorotolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-012,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01ChloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01BromomethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-10-01ChloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01MetribuzinMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01PropachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ButachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01DieldrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01MetolachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01DicambaMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01BromobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,1-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01o-ChlorotolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-012,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ChloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01BromomethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-07-01ChloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01DicambaMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01MetribuzinMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01PropachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ButachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01DieldrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01MetolachlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01BromobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,1-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01o-ChlorotolueneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-012,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ChloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01BromomethaneMonitoring, RegularPeriod ended · no return to compliance on file
2019-04-01ChloromethaneMonitoring, RegularPeriod ended · no return to compliance on file

System details

Population served	25
Service connections	14
Water source	Groundwater
System type	Community Water System
Owner	Private
Status	Active
City	Tonasket
EPA ZIP on file	98855

Areas served

Okanogan County

Reading this record

Twin Pines Mobile Home Park is a community water system that draws from groundwater and serves about 25 people in Tonasket, Washington. 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.