Public water system record

Glenwood Mobile Home Park

Serves an area of San Joaquin County, CA · 100 people served

Federal records show 2 health-based violations and 3 monitoring/reporting issues for Glenwood Mobile Home Park in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

CA3900649
SAN RAMON
CA
100 served

System profile

Source water Groundwater

ZIP 94582

EPA system ID CA3900649

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 2
Resolved: 1
Unresolved: 1
Any acute record: Yes
Monitoring issues, last 10 years: 3

Key facts

Glenwood Mobile Home Park draws water from 1 well.
Highest measured level in the last 10 years: Nitrate, 11.7 mg/L, federal limit 10 mg/L (1.2 times the limit), 2016.
Most recent formal enforcement: compliance order (no penalty) by California, August 2025.
Record on file since 1980, with 24 health-based violations before October 19, 2016.

Check whether Glenwood Mobile Home Park serves your address

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant	Rule family	Start date	Status	Acute
LEAD AND COPPER RULE REVISIONS Treatment technique failure	350	Oct 17, 2024	Active	No
Nitrate Contaminant limit exceeded Measured 11.7 mg/L, federal limit 10 mg/L (1.2 times the limit)	330	Oct 1, 2016	Resolved	Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue	Start date	Status
Consumer Confidence Rule OTHER	Jul 1, 2025	Active Enforcement action in place
LEAD AND COPPER RULE REVISIONS RPT	Oct 17, 2024	Active
Lead and Copper Rule Monitoring and reporting	Oct 1, 2021	Resolved

Full record since 1980

EPA's records for Glenwood Mobile Home Park go back to 1980. Before October 19, 2016 they list 24 health-based violations (24 resolved) and 15 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1980s	0	2
1990s	0	1
2000s	2	8
2010 to October 18, 2016	22	4
2020s	1	3

Most recent health-based violation before October 19, 2016: Nitrate (acute), began October 2016, Resolved.

Show all 24 health-based violations before October 19, 2016

Contaminant	Start date	Status
Nitrate (acute) Contaminant limit exceeded Measured 11.7 mg/L, federal limit 10 mg/L (1.2 times the limit)	Oct 1, 2016	Resolved
Nitrate (acute) Contaminant limit exceeded Measured 11.3 mg/L, federal limit 10 mg/L (1.1 times the limit)	Jan 1, 2016	Resolved
Nitrate-Nitrite (acute) Contaminant limit exceeded	Oct 1, 2015	Resolved
Nitrate-Nitrite (acute) Contaminant limit exceeded	Jul 1, 2015	Resolved
Nitrate (acute) Contaminant limit exceeded	Apr 1, 2015	Resolved
Nitrate (acute) Contaminant limit exceeded	Jan 1, 2015	Resolved
Total Coliform Contaminant limit exceeded	Dec 1, 2014	Resolved
Nitrate (acute) Contaminant limit exceeded	Oct 1, 2014	Resolved
Nitrate (acute) Contaminant limit exceeded	Jul 1, 2014	Resolved
Nitrate (acute) Contaminant limit exceeded	Apr 1, 2014	Resolved
Nitrate (acute) Contaminant limit exceeded	Jan 1, 2014	Resolved
Nitrate (acute) Contaminant limit exceeded	Oct 1, 2013	Resolved
Nitrate (acute) Contaminant limit exceeded	Jul 1, 2013	Resolved
Nitrate (acute) Contaminant limit exceeded	Apr 1, 2013	Resolved
Nitrate (acute) Contaminant limit exceeded	Jan 1, 2013	Resolved
Nitrate (acute) Contaminant limit exceeded	Oct 1, 2012	Resolved
Nitrate (acute) Contaminant limit exceeded	Jul 1, 2012	Resolved
Nitrate (acute) Contaminant limit exceeded	Apr 2, 2012	Resolved
Nitrate-Nitrite (acute) Contaminant limit exceeded	Jan 1, 2012	Resolved
Nitrate (acute) Contaminant limit exceeded	May 1, 2011	Resolved
Nitrate (acute) Contaminant limit exceeded	Mar 1, 2011	Resolved
Nitrate (acute) Contaminant limit exceeded	Jan 1, 2011	Resolved
Nitrate (acute) Contaminant limit exceeded	Jan 1, 2009	Resolved
Total Coliform Contaminant limit exceeded	Jul 1, 2000	Resolved

Enforcement actions

California regulators took 5 formal enforcement actions against Glenwood Mobile Home Park between 2009 and 2025. The most recent was a compliance order (no penalty) in August 2025.

Date	By	Action	Violations covered
Aug 20, 2025	California	Compliance order (no penalty)	1 violation: Consumer Confidence Rule
Oct 21, 2021	California	Compliance order (no penalty)	1 violation: Lead and Copper Rule
Jul 1, 2012	California	Signed compliance agreement	17 violations (17 health-based): Nitrate, Nitrate-Nitrite
Jan 1, 2012	California	Signed compliance agreement	2 violations (2 health-based): Nitrate-Nitrite, Nitrate
Dec 10, 2009	California	Signed compliance agreement	5 violations (5 health-based): Nitrate, Nitrate-Nitrite

What the violations mean

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Nitrate

1 incident

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Where the water comes from

Glenwood Mobile Home Park draws water from 1 well.

Annual water quality report

Glenwood Mobile Home Park must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Glenwood Mobile Home Park for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.

Certified drinking water labs by state EPA guidance for private wells