What is the address of Marysville WRF?

The address on the plant’s EPA facility record is 12901 Beecher Gamble Rd, Marysville, OH 43040, in Union County. Its coordinates are 40.1946, -83.2687. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Marysville WRF treat?

Marysville WRF treats an average of 5.36 MGD and is permitted for a design flow of 8 MGD.

What treatment technology does Marysville WRF use?

Klarifi has identified 2 treatment structures and unit processes at the Marysville facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Marysville WRF?

The facility discharges under NPDES permit OH0136271, currently effective, expiring June 2028.

Is Marysville WRF in compliance?

Discharge monitoring reports show 8 violations at Marysville WRF in the last three years, 4 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Marysville WRF and how do I contact them?

Marysville WRF is a publicly owned treatment works in Marysville, Ohio. Klarifi lists 4 verified decision-maker contacts for this facility, available with a free trial.

Try for free Log in

Marysville WRF

12901 Beecher Gamble Rd, Marysville, OH 43040 · Union County · Publicly Owned Treatment Works

Average flow: 5.36 MGD

Design flow: 8 MGD

NPDES permit: OH0136271; Effective

Permit expires: June 2028

Population served: 26,558; CWNS 2022

Marysville WRF is a publicly owned wastewater treatment works in Marysville, Union County, Ohio treating an average of 5.36 million gallons per day against a permitted design capacity of 8 MGD, serving about 26,558 residents. It discharges under NPDES permit OH0136271 (effective), which expires in June 2028, with 8 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Marysville WRF.

Available with a free Klarifi account

See the full treatment train at Marysville WRF: structures, unit processes and planned upgrades, with exact unit counts.

Create a free account

Compliance snapshot (last 3 years)

Total violations: 8

Effluent violations: 4

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

4 verified contacts for Marysville WRF, with validated emails and direct phone numbers.

Unlock 4 verified contacts (1 more than shown)

Names, validated emails and direct phone numbers for decision-makers at Marysville WRF, plus the full compliance history and discharge data.

Try Klarifi free

Nearby wastewater treatment plants in Ohio

Mill Creek Estates WWTP

Marysville · 3 mi away

0.06 MGD

Darby Meadows WWTP

Marysville · 3 mi away

0.02 MGD

Crottinger Estates WWTP

Plain City · 4 mi away

0.0036 MGD

Ostrander WWTP

Ostrander · 5 mi away

0.06 MGD

Plain City WWTP

Plain City · 6 mi away

0.83 MGD

Fairbanks Middle And High School-Fairbanks Middle And High School

Milford Center · 7 mi away

0.0049 MGD

Scioto Hills STP

Powell · 8 mi away

0.05 MGD

Parrott Village WWTP

Marysville · 8 mi away

0.01 MGD

Marysville WRF: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026; facility record last updated August 4, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms

Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free