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MAMMOTH MOUNTAIN SKI AREA - OUTPOST 14

California — Non-Transient Non-Community — PWSID: CA2600624

System Information

PWSIDCA2600624
System NameMAMMOTH MOUNTAIN SKI AREA - OUTPOST 14
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedJan 27, 1983
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityMAMMOTH LAKES
ZIP Code93546
AddressPO Box 24
OrganizationHAYES, MICHELLE
Phone760-934-0710

Population & Service

Population Served7,736
Service Connections25

Drinking Water Violations (31)

This water system has 31 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
Nov 1, 2014 Nov 30, 2014 MR No No — 5% of samples — Resolved Nov 30, 2014 —
Nov 1, 2014 Nov 30, 2014 MR No No — 5% of samples — Resolved Nov 30, 2014 —
Oct 1, 2014 Oct 31, 2014 MR No No — 5% of samples — Resolved Oct 31, 2014 —
Oct 1, 2014 Oct 31, 2014 MR No No — 5% of samples — Resolved Oct 31, 2014 —
Jan 1, 2009 Jan 31, 2009 MR No No — 5% of samples — Resolved Jan 31, 2009 —
Jan 1, 2009 Jan 31, 2009 MR No No — 5% of samples — Resolved Jan 31, 2009 —
Jan 1, 2009 Jan 31, 2009 MR No No — 5% of samples — Resolved Jan 31, 2009 —
Nov 1, 2003 Nov 30, 2003 MR No No — 5% of samples — Resolved Nov 30, 2003 —
Nov 1, 2003 Nov 30, 2003 MR No No — 5% of samples — Resolved Nov 30, 2003 —
Nov 1, 2003 Nov 30, 2003 MR No No — 5% of samples — Resolved Nov 30, 2003 —
Mar 1, 2003 Mar 31, 2003 MR No No — 5% of samples — Resolved Mar 31, 2003 —
Mar 1, 2003 Mar 31, 2003 MR No No — 5% of samples — Resolved Mar 31, 2003 —
Jul 1, 1993 — MR No No — TT — Resolved Sep 30, 2005 —
Sep 1, 1984 Sep 30, 1984 Other No No — — — Archived Sep 30, 1984 —
Aug 1, 1984 Aug 31, 1984 Other No No — — — Archived Aug 31, 1984 —
Jul 1, 1984 Jul 31, 1984 Other No No — — — Archived Jul 31, 1984 —
Jun 1, 1984 Jun 30, 1984 Other No No — — — Archived Jun 30, 1984 —
Apr 1, 1984 Apr 30, 1984 Other No No — — — Archived Apr 30, 1984 —
Jan 1, 1984 Jan 31, 1984 Other No No — — — Archived Jan 31, 1984 —
Oct 1, 1983 Oct 31, 1983 Other No No — — — Archived Oct 31, 1983 —
Sep 1, 1983 Sep 30, 1983 Other No No — — — Archived Sep 30, 1983 —
Aug 1, 1983 Aug 31, 1983 Other No No — — — Archived Aug 31, 1983 —
Jul 1, 1983 Jul 31, 1983 Other No No — — — Archived Jul 31, 1983 —
Jun 1, 1983 Jun 30, 1983 Other No No — — — Archived Jun 30, 1983 —
May 1, 1983 May 31, 1983 Other No No — — — Archived May 31, 1983 —
Apr 1, 1983 Apr 30, 1983 Other No No — — — Archived Apr 30, 1983 —
Mar 1, 1983 Mar 31, 1983 Other No No — — — Archived Mar 31, 1983 —
Dec 1, 1982 Dec 31, 1982 Other No No — — — Archived Dec 31, 1982 —
Nov 1, 1982 Nov 30, 1982 Other No No — — — Archived Nov 30, 1982 —
Oct 1, 1982 Oct 31, 1982 Other No No — — — Archived Oct 31, 1982 —
Oct 1, 1981 Sep 30, 1982 MR No Yes — 15 pCi/L — Archived Sep 30, 1982 —

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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