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Tap water quality report

Riviera Terrace Tc

EPA monitoring tested this supplier for 40 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

40
contaminants tested
12
detected
435
people served
6
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Anchorage Municipality

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

6
health-based violations
151
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2020-08-06
TT Health-based Resolved 2020-08-06
TT Health-based Resolved 2020-08-06
TT Health-based Resolved 2020-08-06
TT Health-based Resolved 2020-08-02
TT Health-based Resolved 2013-04-06
MR Monitoring Resolved 2019-10-01 → 2019-12-31
Other Monitoring Resolved 2017-10-01
MR Monitoring Resolved 2012-07-01 → 2012-09-30
MR Monitoring Resolved 1999-01-01 → 2000-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.00069 mg/L 4.6%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Copper
75.7 µg/L 5.8%
of the EPA limit 1300 µg/L
 11/15 SYR4 2013–2019
Chloroform
13.4 µg/L
No EPA limit set
 7/7 SYR4 2012–2018
Dichloroacetic Acid
8.7 µg/L
No EPA limit set
 7/7 SYR4 2012–2018
TTHM
14.8 µg/L 19%
of the EPA limit 80 µg/L
 7/7 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
21.7 µg/L 36%
of the EPA limit 60 µg/L
 7/7 SYR4 2012–2018
Trichloroacetic Acid
13 µg/L
No EPA limit set
 6/7 SYR4 2012–2018
Bromodichloromethane
1.38 µg/L
No EPA limit set
 4/7 SYR4 2012–2018
Arsenic
4.9 µg/L 49%
of the EPA limit 10 µg/L
 1/1 SYR4 2018
Lead
20.2 µg/L 135%
of the EPA limit, in the worst sample — 15 µg/L
 1/15 SYR4 2013–2019
Nitrate-Nitrite
176 µg/L 1.8%
of the EPA limit 10000 µg/L
 1/7 SYR4 2012–2019
Toluene
1.91 µg/L 0.2%
of the EPA limit 1000 µg/L
 1/3 SYR4 2013–2019
28 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAsbestosBenzeneBromoformChlorobenzeneCarbon TetrachlorideCombined Radium (-226 And -228)DichloromethaneDibromoacetic AcidDibromochloromethaneEthylbenzeneMonobromoacetic AcidMonochloroacetic AcidNitrateStyreneTetrachloroethyleneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHNSON, CAMERON
Phone
818-825-5488
Email
cjohnson@amgland.com

Frequently asked questions about Riviera Terrace Tc

Is Riviera Terrace Tc tap water safe to drink?

EPA monitoring detected 12 contaminants in Riviera Terrace Tc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Riviera Terrace Tc's water?

EPA monitoring detected Lead, Copper, Chloroform, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Riviera Terrace Tc serve?

Riviera Terrace Tc reports serving 435 people in California, per its EPA record.

Has Riviera Terrace Tc had any water quality violations?

The EPA has 151 violations on file for Riviera Terrace Tc, of which 6 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.