Hidden Lake Yellowstone County W and S D

PWSID: MT0003374

System Details

Population Served350
Service Connections113
Water SourceGroundwater
System TypeCommunity Water System
OwnerLocal Government
StatusActive
CityBillings
Zip Code59105

Areas Served

  • Billings, Yellowstone County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0070 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0010 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level

Violation History (54 total)

ContaminantViolationDateHealth-BasedStatus
2023-11-01Returned to Compliance
2023-11-01Returned to Compliance
2023-11-01Returned to Compliance
2023-11-01Acknowledged
2021-08-01 MajorReturned to Compliance
2020-04-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2020-01-01 MajorReturned to Compliance
2017-07-01Returned to Compliance
2017-07-01 MajorReturned to Compliance

Showing 50 of 54 historical violations.