City of San Diego is a large public water system in EPA region 09 that provides tap water for the 91902, 91911, 91915, 91941, 91942, 91950, 92008, 92019 - 92021, 92027, 92040, 92065, 92071, 92093, 92102 - 92111, 92114 - 92117, 92120 - 92124, 92127 - 92131, 92136, 92140, 92154, 92173 zip codes. It has 4 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 Diego showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <2.0 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.4 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.5 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 10.59 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| E Park Ave. & San Ysidro Blvd. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 3.43 µg/L Meets Reporting Threshold
|
|---|---|---|
| 45th St. & Imperial Ave. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 5.81 µg/L Meets Reporting Threshold
|
| 5922 Rancho Hills Dr. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 2.9 µg/L Meets Reporting Threshold
|
| 1880 Smythe Ave. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 2.91 µg/L Meets Reporting Threshold
|
| 1848 Manzana Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 4.3 µg/L Meets Reporting Threshold
|
| 7225 Keighley St. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 4.21 µg/L Meets Reporting Threshold
|
| 2100 Via Casa Alta San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 9.19 µg/L Meets Reporting Threshold
|
| 8441 New Salem Ct. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 8.9 µg/L Meets Reporting Threshold
|
| Carmel Park Dr. & Del Mar Glen San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 10.59 µg/L Meets Reporting Threshold
|
| 8709 Lake Athabaska Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 6.13 µg/L Meets Reporting Threshold
|
| 3945 Alameda Dr. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 3.4 µg/L Meets Reporting Threshold
|
| Via Campestre & Campto Punta Arenas San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 6.8 µg/L Meets Reporting Threshold
|
| Ocean View Hills & Sea Drift Pkwy. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 2.4 µg/L Meets Reporting Threshold
|
| 14462 Garden Trail San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 8.03 µg/L Meets Reporting Threshold
|
| John J. Hopkins & General Atomic San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 8.6 µg/L Meets Reporting Threshold
|
| Pomerado Rd. & Grandee Pl. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 2.6 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).
| E Park Ave. & San Ysidro Blvd. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 3.21 µg/L |
|---|---|---|
| 45th St. & Imperial Ave. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 5.52 µg/L |
| 5922 Rancho Hills Dr. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 4.11 µg/L |
| 1880 Smythe Ave. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 3.59 µg/L |
| 1848 Manzana Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 4.84 µg/L |
| 7225 Keighley St. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 4.71 µg/L |
| 2100 Via Casa Alta San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 10.89 µg/L |
| 8441 New Salem Ct. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 10.2 µg/L |
| Carmel Park Dr. & Del Mar Glen San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 12.79 µg/L |
| 8709 Lake Athabaska Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 7.6 µg/L |
| 3945 Alameda Dr. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 3.9 µg/L |
| Via Campestre & Campto Punta Arenas San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 6.46 µg/L |
| Ocean View Hills & Sea Drift Pkwy. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 2.98 µg/L |
| 14462 Garden Trail San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 9.23 µg/L |
| John J. Hopkins & General Atomic San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 10.2 µg/L |
| Pomerado Rd. & Grandee Pl. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 2.6 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).
| E Park Ave. & San Ysidro Blvd. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 5.24 µg/L |
|---|---|---|
| 45th St. & Imperial Ave. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 8.91 µg/L |
| 5922 Rancho Hills Dr. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 5.61 µg/L |
| 1880 Smythe Ave. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 4.69 µg/L |
| 1848 Manzana Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 7.2 µg/L |
| 7225 Keighley St. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 6.71 µg/L |
| 2100 Via Casa Alta San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 17.39 µg/L |
| 8441 New Salem Ct. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 16.8 µg/L |
| Carmel Park Dr. & Del Mar Glen San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 20.39 µg/L |
| 8709 Lake Athabaska Way San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 11.13 µg/L |
| 3945 Alameda Dr. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 5.4 µg/L |
| Via Campestre & Campto Punta Arenas San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 11.86 µg/L |
| Ocean View Hills & Sea Drift Pkwy. San Diego Potable Water Distribution System
| 11/20/2018 80 months ago
| 4.08 µg/L |
| 14462 Garden Trail San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 14.73 µg/L |
| John J. Hopkins & General Atomic San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 16.4 µg/L |
| Pomerado Rd. & Grandee Pl. San Diego Potable Water Distribution System
| 11/13/2018 80 months ago
| 4.1 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 Diego showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.01 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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.
| Miramar FP Combined Effluent Miramar WTP
| 8/21/2018 83 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 8/21/2018 83 months ago
| <0.03 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 8/21/2018 83 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.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| Miramar FP Combined Effluent Miramar WTP
| 8/21/2018 83 months ago
| <0.09 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 8/21/2018 83 months ago
| <0.09 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 8/21/2018 83 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 Diego showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.2 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.03 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.3 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 0.65 µg/L. Learn more about Manganese.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| .65 µg/L Meets Reporting Threshold
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| .4 µg/L Meets Reporting Threshold
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 months ago
| <0.4 µg/L Below Reporting Level
|
o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.007 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.05 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.3 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.02 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.2 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| Miramar FP Combined Effluent Miramar WTP
| 8/21/2018 83 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 8/21/2018 83 months ago
| <0.3 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 8/21/2018 83 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 Diego showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.04 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 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 Diego showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| Miramar FP Combined Effluent Miramar WTP
| 11/13/2018 80 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| Alvarado FP Combined Effluent Alvarado WTP
| 11/13/2018 80 months ago
| <0.07 µg/L Below Reporting Level
|
| Otay FP Combined Effluent Otay WTP
| 11/20/2018 80 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| San Diego Potable Water Distribution System | Surface Water (SW) |
| Miramar WTP | Surface Water (SW) |
| Alvarado WTP | Surface Water (SW) |
| Otay WTP | Surface Water (SW) |
The latest water samples were taken between August 21st, 2018 and November 20th, 2018.