Delaware County Water Company, Inc. is a large public water system in EPA region 05 that provides tap water for the 40233, 43011, 43016, 43017, 43021, 43032, 43040, 43054, 43064 - 43066, 43081, 43082, 43086, 43235, 43302, 43315, 43320, 43321, 43334, 43350, 44035 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 Delaware County Water Company, Inc. showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <2.0 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.4 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.5 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 39.75 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| 55 Lazelle Road (Willow Brook) Distribution system
| 3/5/2019 76 months ago
| 34.32 µg/L ⚠️ Exceeds 50% of Reference Level
|
|---|---|---|
| 61 North Third Street (Ostrander School) Distribution system
| 3/5/2019 76 months ago
| 27.67 µg/L Meets Reporting Threshold
|
| 8961 Polaris Parkway (Donatos Pizza) Distribution system
| 3/5/2019 76 months ago
| 32 µg/L ⚠️ Exceeds 50% of Reference Level
|
| 1680 East Orange Road (Orange Township Fire) Distribution system
| 3/5/2019 76 months ago
| 19.8 µg/L Meets Reporting Threshold
|
| 6658 Olentangy River Road (Del-Co Administration) Distribution system
| 3/5/2019 76 months ago
| 39.75 µg/L ⚠️ Exceeds 50% of Reference Level
|
| 7259 Penn Road (Mill Creek Golf Club) Distribution system
| 3/5/2019 76 months ago
| 27.7 µg/L Meets Reporting Threshold
|
| 7080 Olentangy River Road (Liberty Church) Distribution system
| 3/5/2019 76 months ago
| 28.65 µg/L Meets Reporting Threshold
|
| 6195 Glick Road (Wendy's) Distribution system
| 3/5/2019 76 months ago
| 32.78 µg/L ⚠️ Exceeds 50% of Reference Level
|
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).
| 55 Lazelle Road (Willow Brook) Distribution system
| 3/5/2019 76 months ago
| 7.54 µg/L |
|---|---|---|
| 61 North Third Street (Ostrander School) Distribution system
| 3/5/2019 76 months ago
| 10.17 µg/L |
| 8961 Polaris Parkway (Donatos Pizza) Distribution system
| 3/5/2019 76 months ago
| 7.11 µg/L |
| 1680 East Orange Road (Orange Township Fire) Distribution system
| 3/5/2019 76 months ago
| 3.9 µg/L |
| 6658 Olentangy River Road (Del-Co Administration) Distribution system
| 3/5/2019 76 months ago
| 11.35 µg/L |
| 7259 Penn Road (Mill Creek Golf Club) Distribution system
| 3/5/2019 76 months ago
| 9.9 µg/L |
| 7080 Olentangy River Road (Liberty Church) Distribution system
| 3/5/2019 76 months ago
| 10.05 µg/L |
| 6195 Glick Road (Wendy's) Distribution system
| 3/5/2019 76 months ago
| 10.68 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).
| 55 Lazelle Road (Willow Brook) Distribution system
| 3/5/2019 76 months ago
| 41.54 µg/L |
|---|---|---|
| 61 North Third Street (Ostrander School) Distribution system
| 3/5/2019 76 months ago
| 37.17 µg/L |
| 8961 Polaris Parkway (Donatos Pizza) Distribution system
| 3/5/2019 76 months ago
| 39.11 µg/L |
| 1680 East Orange Road (Orange Township Fire) Distribution system
| 3/5/2019 76 months ago
| 23.7 µg/L |
| 6658 Olentangy River Road (Del-Co Administration) Distribution system
| 3/5/2019 76 months ago
| 50.35 µg/L |
| 7259 Penn Road (Mill Creek Golf Club) Distribution system
| 3/5/2019 76 months ago
| 36.9 µg/L |
| 7080 Olentangy River Road (Liberty Church) Distribution system
| 3/5/2019 76 months ago
| 38.05 µg/L |
| 6195 Glick Road (Wendy's) Distribution system
| 3/5/2019 76 months ago
| 42.68 µg/L |
alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for Delaware County Water Company, Inc. showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.01 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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.
| Entry Point to Dist. System Olentangy WTP
| 9/18/2018 82 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 9/18/2018 82 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.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| Entry Point to Dist. System Olentangy WTP
| 9/18/2018 82 months ago
| <0.09 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 9/18/2018 82 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 Delaware County Water Company, Inc. showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 2 µg/L. Learn more about Manganese.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| 2 µg/L Meets Reporting Threshold
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.4 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.007 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.05 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.02 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| Entry Point to Dist. System Olentangy WTP
| 9/18/2018 82 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 9/18/2018 82 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 Delaware County Water Company, Inc. showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.04 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 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 Delaware County Water Company, Inc. showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| Entry Point to Dist. System Olentangy WTP
| 3/5/2019 76 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| Entry Point to Dist. System Alum Creek WTP
| 3/5/2019 76 months ago
| <0.07 µg/L Below Reporting Level
|
| Entry Point to Dist. System East Knox WTP
| 12/4/2018 80 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| Olentangy WTP | Surface Water (SW) |
| Alum Creek WTP | Surface Water (SW) |
| East Knox WTP | Ground Water (GW) |
| Distribution system | Multiple sources (MX) |
The latest water samples were taken between September 18th, 2018 and March 5th, 2019.