INSTITUTE OF MENTAL PHYSICS

California - Transient Non-Community - PWSID: CA3600768

System Information

PWSID	CA3600768
System Name	INSTITUTE OF MENTAL PHYSICS
System Type	Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Mar 22, 1979
Last Reported	Jun 22, 2026

Location & Contact

State	California
City	JOSHUA TREE
ZIP Code	92252
Address	P.O Box 1000 29 Palms Highway
Organization	CASTILLO, TERRY
Phone	760-469-9764

Population & Service

Population Served	120
Service Connections	2

Drinking Water Violations (70)

This water system has 70 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Jan 1, 2026	Mar 31, 2026	MCL	Yes	No	43 MG/L	10 mg/L	10	Archived	Mar 31, 2026	-
Oct 1, 2025	Dec 31, 2025	MCL	Yes	No	43.6 MG/L	10 mg/L	10	Archived	Dec 31, 2025	-
Jul 1, 2025	Sep 30, 2025	MCL	Yes	No	44.35 MG/L	10 mg/L	10	Archived	Sep 30, 2025	-
Apr 1, 2025	Jun 30, 2025	MCL	Yes	No	43.15 MG/L	10 mg/L	10	Archived	Jun 30, 2025	-
Jan 1, 2025	Mar 31, 2025	MON	No	Yes	-	-	-	Resolved	Mar 31, 2025	-
Jan 1, 2025	Mar 31, 2025	MON	No	Yes	-	-	-	Resolved	Mar 31, 2025	-
Jan 1, 2025	Mar 31, 2025	MCL	Yes	No	41.3 MG/L	10 mg/L	10	Archived	Mar 31, 2025	-
Oct 1, 2024	Dec 31, 2024	MCL	Yes	No	41.4 MG/L	10 mg/L	10	Archived	Dec 31, 2024	-
Jul 1, 2024	Sep 30, 2024	MCL	Yes	No	41.4 MG/L	10 mg/L	10	Archived	Sep 30, 2024	-
Apr 1, 2024	Jun 30, 2024	MCL	Yes	No	40.6 MG/L	10 mg/L	10	Archived	Jun 30, 2024	-
Jan 1, 2024	Mar 31, 2024	MCL	Yes	No	41 MG/L	10 mg/L	10	Archived	Mar 31, 2024	-
Oct 1, 2023	Dec 31, 2023	MCL	Yes	No	41.7 MG/L	10 mg/L	10	Archived	Dec 31, 2023	-
Jul 1, 2023	Sep 30, 2023	MCL	Yes	No	42.05 MG/L	10 mg/L	10	Archived	Sep 30, 2023	-
Apr 1, 2023	Jun 30, 2023	MCL	Yes	No	41.6 MG/L	10 mg/L	10	Archived	Jun 30, 2023	-
Jan 1, 2023	Mar 31, 2023	MCL	Yes	No	41.6 MG/L	10 mg/L	10	Archived	Mar 31, 2023	-
Oct 1, 2022	Dec 31, 2022	MCL	Yes	No	40.6 MG/L	10 mg/L	10	Archived	Dec 31, 2022	-
Jul 1, 2022	Sep 30, 2022	MCL	Yes	No	39.55 MG/L	10 mg/L	10	Archived	Sep 30, 2022	-
Apr 1, 2022	Jun 30, 2022	MCL	Yes	No	39.9 MG/L	10 mg/L	10	Archived	Jun 30, 2022	-
Jan 1, 2022	Mar 31, 2022	MCL	Yes	No	40.4 MG/L	10 mg/L	10	Archived	Mar 31, 2022	-
Jan 1, 2022	Dec 31, 2024	MR	No	Yes	-	1 mg/L	-	Archived	Dec 31, 2024	-
Oct 1, 2021	Dec 31, 2021	MCL	Yes	No	40.1 MG/L	10 mg/L	10	Archived	Dec 31, 2021	-
Jul 1, 2021	Sep 30, 2021	MCL	Yes	No	38.5 MG/L	10 mg/L	10	Archived	Sep 30, 2021	-
Apr 1, 2021	Jun 30, 2021	MCL	Yes	No	39 MG/L	10 mg/L	10	Archived	Jun 30, 2021	-
Jan 1, 2021	Mar 31, 2021	MR	No	Yes	-	10 mg/L	-	Resolved	Mar 31, 2021	-
Jan 1, 2021	Mar 31, 2021	MR	No	Yes	-	10 mg/L	-	Resolved	Mar 31, 2021	-
Jan 1, 2021	Mar 31, 2021	MON	No	Yes	-	-	-	Resolved	Mar 31, 2021	-
Jan 1, 2021	Mar 31, 2021	MON	No	Yes	-	-	-	Resolved	Mar 31, 2021	-
Oct 1, 2020	Dec 31, 2020	MON	No	Yes	-	-	-	Resolved	Dec 31, 2020	-
Oct 1, 2020	Dec 31, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 2020	-
Oct 1, 2020	Dec 31, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 2020	-
Oct 1, 2020	Dec 31, 2020	MON	No	Yes	-	-	-	Resolved	Dec 31, 2020	-
Jul 1, 2020	Sep 30, 2020	MON	No	Yes	-	-	-	Resolved	Sep 30, 2020	-
Jul 1, 2020	Sep 30, 2020	MON	No	Yes	-	-	-	Resolved	Sep 30, 2020	-
Jul 1, 2020	Sep 30, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Sep 30, 2020	-
Jul 1, 2020	Sep 30, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Sep 30, 2020	-
Apr 1, 2020	Jun 30, 2020	MON	No	Yes	-	-	-	Resolved	Jun 30, 2020	-
Apr 1, 2020	Jun 30, 2020	MON	No	Yes	-	-	-	Resolved	Jun 30, 2020	-
Apr 1, 2020	Jun 30, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Jun 30, 2020	-
Apr 1, 2020	Jun 30, 2020	MR	No	Yes	-	10 mg/L	-	Resolved	Jun 30, 2020	-
Jan 1, 2020	Mar 31, 2020	MCL	Yes	No	32.3 MG/L	10 mg/L	10	Archived	Mar 31, 2020	-
Oct 1, 2019	Dec 31, 2019	MCL	Yes	No	19.1 MG/L	10 mg/L	10	Archived	Dec 31, 2019	-
Jul 1, 2019	Sep 30, 2019	MCL	Yes	No	18.5 MG/L	10 mg/L	10	Archived	Sep 30, 2019	-
Apr 1, 2019	Jun 30, 2019	MCL	Yes	No	16.4 MG/L	10 mg/L	10	Archived	Jun 30, 2019	-
Jan 1, 2019	Mar 31, 2019	MCL	Yes	No	18.9 MG/L	10 mg/L	10	Archived	Mar 31, 2019	-
Jan 1, 2019	Dec 31, 2021	MR	No	Yes	-	1 mg/L	-	Archived	Dec 31, 2021	-
Oct 1, 2018	Dec 31, 2018	MCL	Yes	No	28.5 MG/L	10 mg/L	10	Archived	Dec 31, 2018	-
Jul 1, 2018	Sep 30, 2018	MCL	Yes	No	25 MG/L	10 mg/L	10	Archived	Sep 30, 2018	-
Apr 1, 2018	Jun 30, 2018	MCL	Yes	No	20 MG/L	10 mg/L	10	Archived	Jun 30, 2018	-
Jan 1, 2018	Mar 31, 2018	MCL	Yes	No	24 MG/L	10 mg/L	10	Archived	Mar 31, 2018	-
Oct 1, 2017	Dec 31, 2017	MCL	Yes	No	20 MG/L	10 mg/L	10	Archived	Dec 31, 2017	-

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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