City of San Juan Capistrano is a large public water system in EPA region 09 that provides tap water for the 92630 zip codes. It has 5 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.
1-butanol is a class of Alcohol that has a minimum reporting level of 2 µg/L and a reference level of 700 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <2.0 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <2.0 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <2.0 µg/L Below Reporting Level
|
2-methoxyethanol is a class of Alcohol that has a minimum reporting level of 0.4 µg/L and a reference level of 21 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.4 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.4 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.4 µg/L Below Reporting Level
|
2-propen-1-ol (Allyl Alcohol) is a class of Alcohol that has a minimum reporting level of 0.5 µg/L and a reference level of 35 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.5 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.5 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.5 µg/L Below Reporting Level
|
HAA5 (five regulated haloacetic acids) are a class of Disinfection Byproducts that includes Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0.5 µg/L and a reference level of 60 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 5.91 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| A01 Camino Capistrano Distribution system
| 5/7/2019 74 months ago
| 5.91 µg/L Meets Reporting Threshold
|
|---|---|---|
| A06 Sacarama Ln Distribution system
| 5/7/2019 74 months ago
| 2.5 µg/L Meets Reporting Threshold
|
| A08 Cerro Rebal Distribution system
| 5/7/2019 74 months ago
| 2.45 µg/L Meets Reporting Threshold
|
| B01 Trabuco Creek Rd. Distribution system
| 5/7/2019 74 months ago
| 5.82 µg/L Meets Reporting Threshold
|
| B09 Calle Esperanza Distribution system
| 5/7/2019 74 months ago
| 4.8 µg/L Meets Reporting Threshold
|
| Country Hills Rd. Distribution system
| 5/7/2019 74 months ago
| 5.81 µg/L Meets Reporting Threshold
|
| C09 Forester Ranch Road Distribution system
| 5/7/2019 74 months ago
| 5.2 µg/L Meets Reporting Threshold
|
| D01 Marbella Vista Distribution system
| 5/7/2019 74 months ago
| 2.45 µg/L Meets Reporting Threshold
|
HAA6Br (six brominated haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Dibromoacetic Acid, Dibromochloroacetic Acid, Monobromoacetic Acid, Tribromoacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA6Br (six brominated haloacetic acids).
| A01 Camino Capistrano Distribution system
| 5/7/2019 74 months ago
| 7.17 µg/L |
|---|---|---|
| A06 Sacarama Ln Distribution system
| 5/7/2019 74 months ago
| 4.27 µg/L |
| A08 Cerro Rebal Distribution system
| 5/7/2019 74 months ago
| 3.89 µg/L |
| B01 Trabuco Creek Rd. Distribution system
| 5/7/2019 74 months ago
| 7.16 µg/L |
| B09 Calle Esperanza Distribution system
| 5/7/2019 74 months ago
| 5.78 µg/L |
| Country Hills Rd. Distribution system
| 5/7/2019 74 months ago
| 7.27 µg/L |
| C09 Forester Ranch Road Distribution system
| 5/7/2019 74 months ago
| 6.1 µg/L |
| D01 Marbella Vista Distribution system
| 5/7/2019 74 months ago
| 3.51 µg/L |
HAA9 (nine haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Chlorodibromoacetic Acid, Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Tribromoacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA9 (nine haloacetic acids).
| A01 Camino Capistrano Distribution system
| 5/7/2019 74 months ago
| 10.48 µg/L |
|---|---|---|
| A06 Sacarama Ln Distribution system
| 5/7/2019 74 months ago
| 5.27 µg/L |
| A08 Cerro Rebal Distribution system
| 5/7/2019 74 months ago
| 5.24 µg/L |
| B01 Trabuco Creek Rd. Distribution system
| 5/7/2019 74 months ago
| 10.37 µg/L |
| B09 Calle Esperanza Distribution system
| 5/7/2019 74 months ago
| 8.98 µg/L |
| Country Hills Rd. Distribution system
| 5/7/2019 74 months ago
| 10.52 µg/L |
| C09 Forester Ranch Road Distribution system
| 5/7/2019 74 months ago
| 9.6 µg/L |
| D01 Marbella Vista Distribution system
| 5/7/2019 74 months ago
| 5.29 µg/L |
alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.01 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.01 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.01 µg/L Below Reporting Level
|
anatoxin-a is a chemical contaminant that is a potential threat to human health. Learn more about anatoxin-a.
| EP #17 - MM Master Meter
| 11/24/2020 56 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EP #18 - SC04 SC04
| 11/24/2020 56 months ago
| <0.03 µg/L Below Reporting Level
|
Butylated Hydroxyanisole is a chemical contaminant that is a potential threat to human health. Learn more about Butylated Hydroxyanisole.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
chlorpyrifos is a chemical contaminant that has a reference level of 2 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
cylindrospermopsin is a chemical contaminant that has a reference level of 0.7 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| EP #17 - MM Master Meter
| 11/24/2020 56 months ago
| <0.09 µg/L Below Reporting Level
|
|---|---|---|
| EP #18 - SC04 SC04
| 11/24/2020 56 months ago
| <0.09 µg/L Below Reporting Level
|
dimethipin is a chemical contaminant that has a reference level of 140 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.2 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.2 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.2 µg/L Below Reporting Level
|
ethoprop is a chemical contaminant that has a reference level of 1.14 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.03 µg/L Below Reporting Level
|
Germanium is a chemical contaminant that is a potential threat to human health. Learn more about Germanium.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.3 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.3 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.3 µg/L Below Reporting Level
|
Manganese is a chemical contaminant that has a reference level of 300 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 4.1 µg/L. Learn more about Manganese.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.4 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| 4.1 µg/L Meets Reporting Threshold
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| 1.2 µg/L Meets Reporting Threshold
|
o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.007 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.007 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.007 µg/L Below Reporting Level
|
oxyfluorfen is a chemical contaminant that has a reference level of 200 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.05 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.05 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.05 µg/L Below Reporting Level
|
profenofos is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.3 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.3 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.3 µg/L Below Reporting Level
|
quinoline is a chemical contaminant that has a reference level of 0.01 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.02 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.02 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.02 µg/L Below Reporting Level
|
tebuconazole is a chemical contaminant that has a reference level of 190 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.2 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.2 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.2 µg/L Below Reporting Level
|
Total Microcystin is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| EP #17 - MM Master Meter
| 11/24/2020 56 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| EP #18 - SC04 SC04
| 11/24/2020 56 months ago
| <0.3 µg/L Below Reporting Level
|
Total Permethrin is a chemical contaminant that has a reference level of 3.344 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.04 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.04 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.04 µg/L Below Reporting Level
|
tribufos is a chemical contaminant that has a reference level of 0.6 µg/L. All the latest water samples for City of San Juan Capistrano showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| EP #14 - NOS North Open Space Well
| 1/8/2019 78 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| EP #16 - GWRP Groundwater Recovery Plant
| 1/8/2019 78 months ago
| <0.07 µg/L Below Reporting Level
|
| EP #17 - MM Master Meter
| 4/30/2019 75 months ago
| <0.07 µg/L Below Reporting Level
|
| EP #18 - SC04 SC04
| 4/30/2019 75 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| North Open Space Well | Ground Water (GW) |
| Groundwater Recovery Plant | Ground Water (GW) |
| Master Meter | Surface Water (SW) |
| SC04 | Surface Water (SW) |
| Distribution system | Multiple sources (MX) |
The latest water samples were taken between January 8th, 2019 and November 24th, 2020.