Granite Bay Water Quality

California

Health Violations

According to EPA SDWIS, Granite Bay, California is served by 7 community water systems covering about 30,711 people. The same extract lists 44 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.

7
Water Systems
30,711
Population Served
44
Health-Based Violation Records
3
Distinct Contaminant Codes

Drinking water in Granite Bay, California is delivered through 7 EPA-regulated community water systems serving an estimated 30,711 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.

PlainEnviro's health-based SDWIS extract shows 44 violation records across the 7 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Arsenic, Coliform (TCR).

A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the California drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.

Community Water Systems

System Name Pop. Served Violations Status
SAN JUAN WATER DISTRICT 29,598 0 Clean
HIDDEN VALLEY COMMUNITY ASSOCIATION 499 0 Clean
FOLSOM LAKE MUTUAL WATER CO 333 0 Clean
RIVERBEND MOBILE HOME & RV PARK 137 1 Health
BIG RISE VILLAGE 78 1 Health
EDGEWATER MOBILE HOME PARK 40 42 Health
WHEATLAND PARK ESTATES 26 0 Clean

Does this city have health-based water violations?

These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.

Water system Contaminant Begin Date
BIG RISE VILLAGE LEAD AND COPPER RULE REVISIONS 2024-10-17
RIVERBEND MOBILE HOME & RV PARK LEAD AND COPPER RULE REVISIONS 2024-10-17
EDGEWATER MOBILE HOME PARK Arsenic 2019-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2019-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2019-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2018-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2018-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2018-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2018-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2017-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2017-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2017-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2016-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2016-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2015-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2015-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2015-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2015-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2014-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2014-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2014-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2014-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2013-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2013-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2013-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2013-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2012-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2012-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2012-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2012-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2011-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2011-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2011-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2010-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2010-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2010-01-01
EDGEWATER MOBILE HOME PARK Arsenic 2009-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2009-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2009-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2008-10-01
EDGEWATER MOBILE HOME PARK Arsenic 2008-07-01
EDGEWATER MOBILE HOME PARK Arsenic 2008-04-01
EDGEWATER MOBILE HOME PARK Arsenic 2008-01-01
EDGEWATER MOBILE HOME PARK Coliform (TCR) 2007-08-01

What are Granite Bay's health-based records for?

Granite Bay's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.

Contaminant Records Systems
Arsenic 41 1
Lead and Copper Rule Revisions 2 2
Coliform (TCR) 1 1

Frequently Asked Questions

What does EPA SDWIS list for drinking water in Granite Bay, California?
Granite Bay is listed with 7 EPA-regulated water systems covering approximately 30,711 people. 44 health-based violation records appear in the extract. A past registry row is not a current drinkability verdict; contact the local utility for current status.
How many water violations does Granite Bay have in this EPA extract?
Granite Bay water systems have 44 health-based violation records in PlainEnviro's EPA SDWIS extract. This extract is filtered to EPA health-based records and does not include monitoring or reporting violations.
What contaminants were found in Granite Bay water?
Health-based records for Granite Bay water systems carry the following EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Arsenic, Coliform (TCR). This source edition does not include authoritative contaminant names. Source: EPA SDWIS.
How many water systems serve Granite Bay?
7 EPA-regulated community water systems serve Granite Bay, California, collectively covering approximately 30,711 people. Data is from the EPA Safe Drinking Water Information System (SDWIS).
Where does Granite Bay get its drinking water?
Granite Bay's water supply comes from 7 EPA-regulated community water systems. Source type data is not available for all systems. For detailed supply information, contact your local water utility. Source: EPA SDWIS.

How does Granite Bay compare in California?

Of the 909 California places with at least one community water system on file, Granite Bay ranks #83 by number of systems (7).

Either side of it: Covina (7), Crescent City (7), Hemet (7), Indio (7)

About This Data

Figures here are the current EPA SDWIS extract joined to the 7 community water systems whose service area lists Granite Bay, ranked against the 909 California places with at least one system on file. Data current as of 2026-08-25.

Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.

A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.

TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.

Related

Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro