City of Columbus (OH) Water Quality

City of Columbus is a large public water system in EPA region 05 that provides tap water for the 43002, 43016, 43017, 43031, 43054, 43065, 43081, 43082, 43109, 43110, 43123, 43130, 43146, 43147, 43202 - 43207, 43210 - 43224, 43228 - 43232, 43236 zip codes. It has 4 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

Contaminants

1-butanol

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 Columbus showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<2.0 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<2.0 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
8/11/2020
59 months ago
<2.0 µg/L
Below Reporting Level

2-methoxyethanol

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 Columbus showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.4 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.4 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
8/11/2020
59 months ago
<0.4 µg/L
Below Reporting Level

2-propen-1-ol (Allyl Alcohol)

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 Columbus 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
Dublin Road WTP
10/13/2020
57 months ago
<0.5 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.5 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
8/11/2020
59 months ago
<0.5 µg/L
Below Reporting Level

HAA5 (five regulated haloacetic acids)

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 Columbus showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 40.52 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

40.52µg/L
10663 Johnstown Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
40.52 µg/L
⚠️ Exceeds 50% of Reference Level
2094 North High Street
Columbus PWS Distribution
4/7/2020
63 months ago
32.57 µg/L
⚠️ Exceeds 50% of Reference Level
7076 Muirfield Dr.
Columbus PWS Distribution
4/7/2020
63 months ago
20.27 µg/L
Meets Reporting Threshold
1955 Polaris PKWY
Columbus PWS Distribution
4/7/2020
63 months ago
18.67 µg/L
Meets Reporting Threshold
7007 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
12.4 µg/L
Meets Reporting Threshold
1930 Hard Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
18.44 µg/L
Meets Reporting Threshold
840 Stelzer Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
19.71 µg/L
Meets Reporting Threshold
3975 Ridge Mill Drive
Columbus PWS Distribution
4/7/2020
63 months ago
11.43 µg/L
Meets Reporting Threshold
3135 Broadway St. Grove City
Columbus PWS Distribution
4/7/2020
63 months ago
16.62 µg/L
Meets Reporting Threshold
5600 Alkire Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
19.01 µg/L
Meets Reporting Threshold
3200 Sulivant Ave.
Columbus PWS Distribution
4/7/2020
63 months ago
16.39 µg/L
Meets Reporting Threshold
995 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
19.96 µg/L
Meets Reporting Threshold
4656 Cemetery Rd. Hilliard
Columbus PWS Distribution
4/7/2020
63 months ago
16.19 µg/L
Meets Reporting Threshold
355 East Wilson Bridge Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
16.5 µg/L
Meets Reporting Threshold
4525 Kenny Rd.
Columbus PWS Distribution
8/13/2020
59 months ago
28.06 µg/L
Meets Reporting Threshold
2731 Winchester Pike
Columbus PWS Distribution
4/7/2020
63 months ago
3.82 µg/L
Meets Reporting Threshold

HAA6Br (six brominated haloacetic acids)

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).

10663 Johnstown Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
6.25 µg/L
2094 North High Street
Columbus PWS Distribution
4/7/2020
63 months ago
5.35 µg/L
7076 Muirfield Dr.
Columbus PWS Distribution
4/7/2020
63 months ago
5.34 µg/L
1955 Polaris PKWY
Columbus PWS Distribution
4/7/2020
63 months ago
5.11 µg/L
7007 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
6.79 µg/L
1930 Hard Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
4.96 µg/L
840 Stelzer Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
5.59 µg/L
3975 Ridge Mill Drive
Columbus PWS Distribution
4/7/2020
63 months ago
4.31 µg/L
3135 Broadway St. Grove City
Columbus PWS Distribution
4/7/2020
63 months ago
4.97 µg/L
5600 Alkire Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
4.77 µg/L
3200 Sulivant Ave.
Columbus PWS Distribution
4/7/2020
63 months ago
4.71 µg/L
995 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
4.82 µg/L
4656 Cemetery Rd. Hilliard
Columbus PWS Distribution
4/7/2020
63 months ago
4.72 µg/L
355 East Wilson Bridge Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
5.01 µg/L
4525 Kenny Rd.
Columbus PWS Distribution
8/13/2020
59 months ago
7.17 µg/L
2731 Winchester Pike
Columbus PWS Distribution
4/7/2020
63 months ago
6.2 µg/L

HAA9 (nine haloacetic acids)

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).

10663 Johnstown Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
46.15 µg/L
2094 North High Street
Columbus PWS Distribution
4/7/2020
63 months ago
37.35 µg/L
7076 Muirfield Dr.
Columbus PWS Distribution
4/7/2020
63 months ago
25.04 µg/L
1955 Polaris PKWY
Columbus PWS Distribution
4/7/2020
63 months ago
23.21 µg/L
7007 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
17.69 µg/L
1930 Hard Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
22.86 µg/L
840 Stelzer Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
24.79 µg/L
3975 Ridge Mill Drive
Columbus PWS Distribution
4/7/2020
63 months ago
15.21 µg/L
3135 Broadway St. Grove City
Columbus PWS Distribution
4/7/2020
63 months ago
21.07 µg/L
5600 Alkire Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
23.27 µg/L
3200 Sulivant Ave.
Columbus PWS Distribution
4/7/2020
63 months ago
20.61 µg/L
995 East Broad St.
Columbus PWS Distribution
4/7/2020
63 months ago
24.32 µg/L
4656 Cemetery Rd. Hilliard
Columbus PWS Distribution
4/7/2020
63 months ago
20.42 µg/L
355 East Wilson Bridge Rd.
Columbus PWS Distribution
4/7/2020
63 months ago
21.01 µg/L
4525 Kenny Rd.
Columbus PWS Distribution
8/13/2020
59 months ago
34.77 µg/L
2731 Winchester Pike
Columbus PWS Distribution
4/7/2020
63 months ago
8.22 µg/L

alpha-hexachlorocyclohexane

alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for City of Columbus showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.01 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.01 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.01 µg/L
Below Reporting Level

anatoxin-a

anatoxin-a is a chemical contaminant that is a potential threat to human health. Learn more about anatoxin-a.

Entry Point to Dist. System
Dublin Road WTP
10/15/2018
81 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/15/2018
81 months ago
<0.03 µg/L
Below Reporting Level

Butylated Hydroxyanisole

Butylated Hydroxyanisole is a chemical contaminant that is a potential threat to human health. Learn more about Butylated Hydroxyanisole.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.03 µg/L
Below Reporting Level

chlorpyrifos

chlorpyrifos is a chemical contaminant that has a reference level of 2 µg/L. All the latest water samples for City of Columbus showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.03 µg/L
Below Reporting Level

cylindrospermopsin

cylindrospermopsin is a chemical contaminant that has a reference level of 0.7 µg/L. All the latest water samples for City of Columbus showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

Entry Point to Dist. System
Dublin Road WTP
10/15/2018
81 months ago
<0.09 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/15/2018
81 months ago
<0.09 µg/L
Below Reporting Level

dimethipin

dimethipin is a chemical contaminant that has a reference level of 140 µg/L. All the latest water samples for City of Columbus showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.2 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.2 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.2 µg/L
Below Reporting Level

ethoprop

ethoprop is a chemical contaminant that has a reference level of 1.14 µg/L. All the latest water samples for City of Columbus showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.03 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.03 µg/L
Below Reporting Level

Germanium

Germanium is a chemical contaminant that is a potential threat to human health. Learn more about Germanium.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.3 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.3 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.3 µg/L
Below Reporting Level

Manganese

Manganese is a chemical contaminant that has a reference level of 300 µg/L. All the latest water samples for City of Columbus showed levels of Manganese that were below unsafe concentration levels. Learn more about Manganese.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.4 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.4 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.4 µg/L
Below Reporting Level

o-toluidine

o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.007 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.007 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.007 µg/L
Below Reporting Level

oxyfluorfen

oxyfluorfen is a chemical contaminant that has a reference level of 200 µg/L. All the latest water samples for City of Columbus showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.05 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.05 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.05 µg/L
Below Reporting Level

profenofos

profenofos is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for City of Columbus showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.3 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.3 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.3 µg/L
Below Reporting Level

quinoline

quinoline is a chemical contaminant that has a reference level of 0.01 µg/L. All the latest water samples for City of Columbus showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.02 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.02 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.02 µg/L
Below Reporting Level

tebuconazole

tebuconazole is a chemical contaminant that has a reference level of 190 µg/L. All the latest water samples for City of Columbus showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.2 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.2 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.2 µg/L
Below Reporting Level

Total Microcystin

Total Microcystin is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for City of Columbus showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

Entry Point to Dist. System
Dublin Road WTP
10/15/2018
81 months ago
<0.3 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/15/2018
81 months ago
<0.3 µg/L
Below Reporting Level

Total Permethrin

Total Permethrin is a chemical contaminant that has a reference level of 3.344 µg/L. All the latest water samples for City of Columbus showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.04 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.04 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.04 µg/L
Below Reporting Level

tribufos

tribufos is a chemical contaminant that has a reference level of 0.6 µg/L. All the latest water samples for City of Columbus showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

Entry Point to Dist. System
Dublin Road WTP
10/13/2020
57 months ago
<0.07 µg/L
Below Reporting Level
Entry Point to Dist. System
Hap Cremean WTP
10/13/2020
57 months ago
<0.07 µg/L
Below Reporting Level
Entry Point to Dist. System
Parsons Ave. WTP
1/21/2020
66 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
Columbus PWS DistributionMultiple sources (MX)
Dublin Road WTPSurface Water (SW)
Hap Cremean WTPSurface Water (SW)
Parsons Ave. WTPGround Water (GW)

FAQ

Is City of Columbus tap water safe to drink?

When was City of Columbus last tested for water contamination?

The latest water samples were taken between October 15th, 2018 and October 13th, 2020.