Laundry Facility Wastewater Discharge Monitoring Checklist [FREE PDF]

Commercial laundry and dry cleaning facilities discharge wastewater containing surfactants, solvents, heavy metals, and perchloroethylene (perc) that are regulated under the Clean Water Act and EPA pretreatment standards. Facilities connected to publicly owned treatment works (POTWs) must comply with EPA 40 CFR Part 403 General Pretreatment Regulations and applicable categorical standards including 40 CFR 63 Subpart M for dry cleaning operations. This checklist enables Quality Control Inspectors

Industry: Commercial Laundry
Frequency: Monthly
Estimated Time: 35-50 minutes
Role: Quality Control Inspector
Total Items: 36
Compliance: EPA 40 CFR Part 403 General Pretreatment Regulations for Existing and New Sources of Pollution, EPA 40 CFR 63 Subpart M National Emission Standards for Perchloroethylene Dry Cleaning Facilities, EPA 40 CFR Part 433 Metal Finishing Effluent Guidelines, Clean Water Act Section 307(b) Industrial Pretreatment Requirements, OSHA 29 CFR 1910.1000 Table Z-1 Air Contaminants (Perc PEL 100 ppm)

Pretreatment System Inspection

Verify the operational status and physical condition of wastewater pretreatment equipment prior to discharge monitoring.

Is the lint trap or solids interceptor inspected and cleaned within the last 7 days?
Is the grease interceptor or oil-water separator free from overflow and at less than 25% capacity?
Is the wastewater equalization or holding tank free from leaks, cracks, or structural damage?
Are pH adjustment or neutralization systems operational and maintaining target pH range?
Are maintenance logs for pretreatment equipment current and signed by a responsible operator?

Effluent pH Measurement

Conduct and record pH measurements at the discharge monitoring point to verify compliance with permit effluent limits.

Has the pH meter been calibrated using two-point calibration with fresh buffer solutions today?
What is the measured effluent pH at the discharge monitoring point?
Does the measured pH fall within the permitted discharge range specified in the facility's pretreatment permit?
Are pH measurement results logged in the facility's discharge monitoring report (DMR) immediately after testing?

Effluent Temperature Monitoring

Measure and record discharge temperature to verify compliance with POTW thermal limits that protect treatment biology.

What is the effluent temperature measured at the discharge monitoring point?
Does the effluent temperature comply with the maximum temperature limit in the pretreatment permit?
Are heat recovery or cooling measures in place for high-temperature wash cycle effluent?
Is the temperature measurement instrument calibrated and displaying an accurate reading?

Solvent & Chemical Discharge Controls

Assess controls preventing perc and other solvent contamination of wastewater discharge from dry cleaning and spotting operations.

Are dry cleaning machines equipped with closed-loop water separator systems that prevent perc from entering the sewer?
Is separator water from perc machines collected, tested, and disposed of as hazardous waste rather than discharged to the sewer?
Are spotting chemicals and solvents used on garments prevented from entering drain systems through spill containment?
Is a chemical inventory maintained listing all detergents, solvents, and chemicals used with their SDS and discharge compatibility status?
Have any chemical spills entered the facility drain system in the past 30 days?
Are drain covers or plugs installed at floor drains in chemical storage areas to prevent spill migration?

Discharge Flow Volume Monitoring

Record wastewater discharge volumes to track daily loading to the POTW and identify unusual consumption patterns.

Has the discharge flow meter been verified for accuracy against a known standard within the last 30 days?
What is the total wastewater discharge volume for the current monitoring period?
Does the current discharge volume fall within the permitted daily or monthly maximum flow limits?
Are discharge flows being spread across operating hours rather than batch-dumped at shift end?
Is water consumption data being tracked to identify opportunities for water reuse and discharge volume reduction?

Effluent Sampling & Laboratory Testing

Verify that required effluent samples are collected, preserved, and submitted to the laboratory according to permit specifications.

Were required effluent samples collected using EPA-approved sampling methods during this monitoring period?
Were samples properly preserved using required preservatives and maintained at correct temperatures during transport?
Was the chain of custody (COC) form completed, signed, and submitted with samples to the certified laboratory?
Have analytical results from the previous monitoring period been received and reviewed against permit limits?
Is the laboratory used for compliance testing certified by the state environmental agency for all required analytes?
Were any permit exceedances detected in the previous analytical results requiring POTW notification?

Record Keeping & Regulatory Reporting

Confirm all discharge monitoring records, DMR submissions, and permit compliance documentation are complete and current.

Are all discharge monitoring reports (DMRs) submitted to the POTW by the required deadline for the current permit year?
Are all wastewater monitoring records retained on-site and organized for a minimum of 3 years?
Is the facility's industrial pretreatment permit current, not expired, and reflective of current operations?
Has the facility submitted any required baseline monitoring reports (BMR) or 90-day compliance reports to the POTW?
Are operator certifications and POTW notifications for any process changes documented and filed?
Additional monitoring observations, corrective actions, or follow-up items identified during this inspection?

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Why Use This Laundry Facility Wastewater Discharge Monitoring Checklist [FREE PDF]?

This laundry facility wastewater discharge monitoring checklist [free pdf] helps commercial laundry teams maintain compliance and operational excellence. Designed for quality control inspector professionals, this checklist covers 36 critical inspection points across 7 sections. Recommended frequency: monthly.

Ensures compliance with EPA 40 CFR Part 403 General Pretreatment Regulations for Existing and New Sources of Pollution, EPA 40 CFR 63 Subpart M National Emission Standards for Perchloroethylene Dry Cleaning Facilities, EPA 40 CFR Part 433 Metal Finishing Effluent Guidelines, Clean Water Act Section 307(b) Industrial Pretreatment Requirements, OSHA 29 CFR 1910.1000 Table Z-1 Air Contaminants (Perc PEL 100 ppm). Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Laundry Facility Wastewater Discharge Monitoring Checklist [FREE PDF] cover?

This checklist covers 36 inspection items across 7 sections: Pretreatment System Inspection, Effluent pH Measurement, Effluent Temperature Monitoring, Solvent & Chemical Discharge Controls, Discharge Flow Volume Monitoring, Effluent Sampling & Laboratory Testing, Record Keeping & Regulatory Reporting. It is designed for commercial laundry operations and compliance.

How often should this checklist be completed?

This checklist should be completed monthly. Each completion takes approximately 35-50 minutes.

Who should use this Laundry Facility Wastewater Discharge Monitoring Checklist [FREE PDF]?

This checklist is designed for Quality Control Inspector professionals in the commercial laundry industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.