Cazadero Water Company, Inc. (PUC)

Published drinking-water records and contacts for Cazadero Water Company, Inc. (PUC). System CA4900508. Review sources and dates; not a real-time water assessment.

System ID: CA4900508
State or territory: CA
Published population served: 525
System type (source code): CWS

Published records and dates

Lead and copper monitoring summaries: 45 — 1994-01-01 – 2026-06-30
California DDW laboratory results: 125 — 2026-03-25 – 2026-04-20

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Monitoring period	Source quarter
Lead (PB90)	2026-01-01 – 2026-06-30	2026Q3
Lead (PB90)	2025-07-01 – 2025-12-31	2026Q3
Lead (PB90)	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	2023-07-01 – 2023-12-31	2026Q3
Lead (PB90)	2023-01-01 – 2023-06-30	2026Q3
Lead (PB90)	2022-07-01 – 2022-12-31	2026Q3
Lead (PB90)	2022-01-01 – 2022-06-30	2026Q3
Lead (PB90)	2021-07-01 – 2021-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
PERFLUOROCTANOIC ACID (PFOA)	< 1.700000000 NG/L	2026-04-20	BUCKEYE HORIZONTAL WELL / California DDW laboratory results
PERFLUOROHEPTANESULFONIC ACID (PFHPS)	< 1.500000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
PERFLUOROCTANOIC ACID (PFOA)	< 1.600000000 NG/L	2026-04-20	BEI HORIZONTAL WELL / California DDW laboratory results
PERFLUORO PFMBA	< 1.600000000 NG/L	2026-04-20	BEI HORIZONTAL WELL / California DDW laboratory results
PERFLUORO PFMPA	< 1.600000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
PERFLUORO PFMBA	< 1.600000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
NONAFLUORO NFDHA	< 1.600000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID 4:2 FTS	< 1.600000000 NG/L	2026-04-20	BUCKEYE HORIZONTAL WELL / California DDW laboratory results
PERFLUORO PFEESA	< 1.400000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
PERFLUOROUNDECANOIC ACID (PFUNA)	< 1.700000000 NG/L	2026-04-20	BUCKEYE HORIZONTAL WELL / California DDW laboratory results
PERFLUOROCTANOIC ACID (PFOA)	< 1.600000000 NG/L	2026-04-20	HOTEL SPRING / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID (PFHxS)	< 1.500000000 NG/L	2026-04-20	BEI HORIZONTAL WELL / California DDW laboratory results

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

40 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2021-07-01 – 2021-09-30	Resolved	No	2026Q3
Arsenic Rule / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Nitrate Rule / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Inorganic Chemicals / Monitoring, Regular	2021-01-01 – 2021-12-31	Archived	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2020-10-01 – 2023-09-30	Archived	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2020-10-01 – 2023-09-30	Archived	No	2026Q3
Surface Water Treatment Rule / Failure to Filter (SWTR)	2020-08-06 – —	Addressed	Yes	2026Q3
Lead and Copper Rule / OCCT/SOWT Treatment Installation/Demonstration	2020-02-14 – —	Addressed	Yes	2026Q3
Lead and Copper Rule / OCCT/SOWT Study/Recommendation	2019-08-14 – —	Addressed	Yes	2026Q3
Surface Water Treatment Rule / Failure to Filter (SWTR)	2019-07-31 – —	Addressed	Yes	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
California DDW laboratory results — last successful check: 2026-10-17

Administrative contact (EPA filing)

Voet, Stephanie: 707-887-7735

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records