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Graystone WS

Washington - Community Water System - PWSID: WA53AD688

System Information

PWSIDWA53AD688
System NameGraystone WS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedDec 17, 2018
Last ReportedMar 26, 2026

Location & Contact

StateWashington
CityPasco
ZIP Code99301
Address110 Taylor Flats Rd
OrganizationGraystone WS
Phone-

Population & Service

Population Served94
Service Connections10

Drinking Water Violations (14)

This water system has 14 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jan 1, 2022 - MR No No - TT - Resolved Jul 18, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.010 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 2 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.005 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.2 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 4.0 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 1 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.006 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.004 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.002 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.1 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.05 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - 0.002 mg/L - Resolved Dec 31, 2022 -
Jan 1, 2020 Dec 31, 2022 MR No Yes - - - Resolved Dec 31, 2022 -

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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