Boulder Creek Water Quality

Compiled by PlainEnviro · August 25, 2026

California

Health Violations

According to EPA SDWIS, Boulder Creek, California is served by 5 community water systems covering about 25,972 people. The same extract lists 114 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.

Water Systems

25,972

Population Served

114

Health-Based Violation Records

Distinct Contaminant Codes

Drinking water in Boulder Creek, California is delivered through 5 EPA-regulated community water systems serving an estimated 25,972 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 114 violation records across the 5 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, Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule.

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	Source	Violations	Status
SAN LORENZO VALLEY WATER DIST	21,145	Surface Water	2	Health
SLVWD - FELTON WATER SYSTEM	4,340	Surface Water	2	Health
FOREST SPRINGS	385	Surface Water	109	Health
BRACKEN BRAE COUNTRY CLUB	52	Surface Water	1	Health
RIDGEVIEW ESTATES MWC	50	Groundwater	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	Category	Begin Date	End Date	Enforcement
BRACKEN BRAE COUNTRY CLUB	LEAD AND COPPER RULE REVISIONS	TT	2024-10-17	Ongoing	-
SLVWD - FELTON WATER SYSTEM	LEAD AND COPPER RULE REVISIONS	TT	2024-10-17	Ongoing	-
SAN LORENZO VALLEY WATER DIST	LEAD AND COPPER RULE REVISIONS	TT	2024-10-17	Ongoing	-
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-11-01	2016-11-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-11-01	2016-11-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-11-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-11-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-10-01	2016-10-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-10-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-09-01	2016-09-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-09-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-08-01	2016-08-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-08-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-07-01	2016-07-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-07-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-06-01	2016-06-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-06-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-05-01	2016-05-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-05-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-04-01	2016-04-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-04-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-03-01	2016-03-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-03-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-02-01	2016-02-29	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-02-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-01-01	2016-01-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2016-01-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-12-01	2015-12-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-12-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-11-01	2015-11-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-11-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-10-01	2015-10-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-10-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-09-01	2015-09-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-09-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-08-01	2015-08-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-08-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-07-01	2015-07-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-07-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-06-01	2015-06-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-06-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-05-01	2015-05-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-05-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-04-01	2015-04-30	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-04-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-03-01	2015-03-31	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-03-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-02-01	2015-02-28	1500980
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-02-01	Ongoing	1500981
FOREST SPRINGS	Surface Water Treatment Rule	TT	2015-01-01	2015-01-31	1500980

Frequently Asked Questions

What does EPA SDWIS list for drinking water in Boulder Creek, California? ▼

Boulder Creek is listed with 5 EPA-regulated water systems covering approximately 25,972 people. 114 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 Boulder Creek have in this EPA extract? ▼

Boulder Creek water systems have 114 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 Boulder Creek water? ▼

Health-based records for Boulder Creek water systems carry the following EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule. This source edition does not include authoritative contaminant names. Source: EPA SDWIS.

How many water systems serve Boulder Creek? ▼

5 EPA-regulated community water systems serve Boulder Creek, California, collectively covering approximately 25,972 people. Data is from the EPA Safe Drinking Water Information System (SDWIS).

Where does Boulder Creek get its drinking water? ▼

Boulder Creek's water supply comes from 5 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.

Related Guides

Understanding Water Quality Violations

What MCL violations mean and how to read EPA data

How to Check Environmental Quality

Step-by-step guide to checking your local environment

Understanding EPA Data

How EPA collects and publishes environmental data

How does Boulder Creek compare in California?

Of the 912 California places with at least one community water system on file, Boulder Creek ranks #123 by number of systems (5).

Either side of it: Angwin (5), Anza (5), Brentwood (5), Cazadero (5)

About This Data

Figures here are the current EPA SDWIS extract joined to the 5 community water systems whose service area lists Boulder Creek, ranked against the 912 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.

Read our methodology - how this data is sourced, computed, and verified.

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