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Trout Gulch Mutual Water Company

Published drinking-water records and contacts for Trout Gulch Mutual Water Company. System CA4400502. Review sources and dates; not a real-time water assessment.

System ID
CA4400502
State or territory
CA
Published population served
614
System type (source code)
CWS

Published records and dates

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

EPA UCMR 5 — most recent imported sample per substance
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
4:2 FTS< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
6:2 FTS< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
8:2 FTS< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-10-15CA4400502-011 / CA4400502011
ADONA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
HFPO-DA< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
NFDHA< 0.02 µg/L0.02 µg/L2025-10-15CA4400502-011 / CA4400502011
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-10-15CA4400502-011 / CA4400502011
PFBA< 0.005 µg/L0.005 µg/L2025-10-15CA4400502-011 / CA4400502011
PFBS< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFDA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFDoA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFEESA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFHpA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFHpS< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFHxA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFHxS< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFMBA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFMPA< 0.004 µg/L0.004 µg/L2025-10-15CA4400502-011 / CA4400502011
PFNA< 0.004 µg/L0.004 µg/L2025-10-15CA4400502-011 / CA4400502011
PFOA< 0.004 µg/L0.004 µg/L2025-10-15CA4400502-011 / CA4400502011
PFOS< 0.004 µg/L0.004 µg/L2025-10-15CA4400502-011 / CA4400502011
PFPeA< 0.003 µg/L0.003 µg/L2025-10-15CA4400502-011 / CA4400502011
PFPeS< 0.004 µg/L0.004 µg/L2025-10-15CA4400502-011 / CA4400502011
PFTA< 0.008 µg/L0.008 µg/L2025-10-15CA4400502-011 / CA4400502011
PFTrDA< 0.007 µg/L0.007 µg/L2025-10-15CA4400502-011 / CA4400502011
PFUnA< 0.002 µg/L0.002 µg/L2025-10-15CA4400502-011 / CA4400502011
lithium20.3 µg/L9 µg/L2025-10-15CA4400502-011 / CA4400502011

Download all EPA UCMR 5 records (CSV)

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
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.0036 mg/L2025-01-01 – 2027-12-312026Q3
Lead (PB90) 0 mg/L2022-01-01 – 2024-12-312026Q3
Lead (PB90) 0.002 mg/L2019-01-01 – 2021-12-312026Q3
Lead (PB90) 0.0025 mg/L2018-01-01 – 2020-12-312026Q3
Lead (PB90) 0 mg/L2015-01-01 – 2017-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
MANGANESE75 UG/L2026-05-13EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
METHYL TERT-BUTYL ETHER< 2.000000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
TRANS-1,2-DICHLOROETHYLENE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
1,2,4-TRICHLOROBENZENE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
VINYL CHLORIDE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
1,2-DICHLOROETHANE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
TRICHLOROTRIFLUOROETHANE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
STYRENE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
1,1-DICHLOROETHYLENE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
TRANS-1,3-DICHLOROPROPENE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
XYLENES, TOTAL< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / California DDW laboratory results
1,1,1-TRICHLOROETHANE< 0.500000000 UG/L2026-04-15EPTDS- MEADOW RANCH SAMPLING TAP / 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

4 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 / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Miscellaneous Other Rules / Notification, Public1984-09-01 – 1984-09-30ArchivedNo2026Q3
Miscellaneous Other Rules / Notification, Public1984-08-01 – 1984-08-31ArchivedNo2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular1981-10-01 – 1982-09-30ArchivedNo2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular1980-10-30 – 1981-10-29ArchivedNo2026Q3

Source dates and refresh checks

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

Administrative contact (EPA filing)

Newby, Patricia: 831-662-3204

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