Industrial users of City Of Wyoming Clean Water Plant

Users sampled

13

of 35 on record

Above 12 ng/L PFOS

9

61 of 209 PFOS samples

Highest PFOS sample

1,100 ng/L

ElectroChemical Finishing 1 (EC1)

Latest sample

Dec 2024

214 samples in all

12 ng/L is Michigan’s surface water quality value for PFOS and the screening criterion of the initiative; 170 ng/L is the value for PFOA since July 2022. Both apply to what a treatment plant discharges to a river or lake, not to what a factory sends to the sewer. An industrial user above the level has not broken a limit: it is a source the receiving plant has to follow up with sampling, a reduction plan or pretreatment.

The largest groups, from each user's NAICS code.

1. 01

   Which industries discharge to City Of Wyoming Clean Water Plant?

   35 industrial users on record discharge process wastewater to City Of Wyoming Clean Water Plant in Grandville, most of them in automotive, metal and equipment manufacturing (9), metal finishing and plating (7), landfills and waste management (6). 7 are categorical users, subject to federal pretreatment standards for their industry.

2. 02

   Has PFAS been found in wastewater sent to City Of Wyoming Clean Water Plant?

   13 of the plant’s industrial users have been sampled for PFAS, 214 samples in 2023–2024. 9 had at least one sample with PFOS above the 12 ng/L screening level; the highest was 1,100 ng/L. The level is a surface water quality value, so a sample above it marks a source the plant has to follow up, not a violation by the company.

3. 03

   What is an industrial pretreatment programme?

   Under the Clean Water Act a treatment plant that receives industrial wastewater has to control it at the source: it permits its significant industrial users, sets local limits, inspects and samples them, and reports to the state each year. The aim is to stop pollutants that pass through or disrupt the plant, or end up in its biosolids.

4. 04

   How do I get the full list of industrial users for City Of Wyoming Clean Water Plant?

   This page shows the first 5 of 35. The full list, with each user’s discharge flow, federal category, PFAS sampling history, source documents and contacts, is available with a free Klarifi account.