CMOM: Where are we CMOM: Where are we since 2005?since 2005?

Ann McCready-GlihaCuyahoga County Sanitary Engineering

SPUG February 16, 2011

US EPA visit in July 2005 at Canalway Visitor Center

Why CMOM? Pollution in Lake Erie, our source of Drinking Water

SSO’s illegal in 1988 with Clean H2O Act

Volunteer Assessment52 page ChecklistCounty prepared Checklist for Client

CommunitiesTo date 27 of 30 met Approval

Completed Checklist

Documentation, Documentation

Eliminated SSO’s

Emergency Management

How did we get approvals?How did we get approvals?

Service AreaStaffingSewer Use OrdinanceFinancialMappingModelingMonitoring of Water Quality

Checklist ItemsChecklist Items

Collection SystemTV, Cleaning, Pump Stations, Hydrogen

SulfideSafetyEmergency PreparednessSSES

Checklist ContinuedChecklist Continued

Daily RecordsProcedure ManualsSSO NotificationsTrainingInventory

◦Supplies◦Vehicles◦Safety

DocumentationDocumentation

Check the documents you have: Current and up-to-date sewer maps Sewer system plans and specificationsManhole location maps with numbered

manholes and GPS coordinatesLift station pump and wet well capacity

information: time to call for vac, etcLift station O&M manuals with emergency

plan

Identify ProblemsAreas with flat sewersAreas with surchargingAreas with bottlenecks or constrictionsAreas with chronic basement backups or

sanitary sewer overflows (SSOs)Areas with excess debris, solids or grease accumulationAreas with heavy root growthAreas with excessive infiltration/inflow (I/I)

Sewers and manholes with severe corrosion

Sewers with severe defects that affect flow capacity

Adequacy of capacity for new connectionsLift station capacity and/or pumping

problemsWet weather relief points or overflow

structures

SSESSanitary Sewer Evaluation Chronic problemsContact Engineer for SSESCounty limit area for SSES with US EPAEncompasses flow studies, sewer

assessments

Performance Indicators for SystemLift Station Failures/ year

Sewer Pipe Failures/year

Sanitary Sewer Overflows/sewer mile/yr

Basement backups/ sewer mile

Complaints/sewer mile

Legal Authority• Ability to chargeSewer Use Codes

◦Pre-treatment program◦Illicit Discharges◦Excessive clear water to sanitary (footers)

Regulate GreaseNew DevelopmentsPrivate ConnectionsEnforce actions for non-compliance,

permits, fees and fines

CooperateShow ProgressBegin procedures now anywayBack at Sanitary

◦US EPA called again, meeting in Aug. 2009 ◦Unpermitted discharges ◦AOC Agreed Order of Consent◦Since 2009 11 more approved

Working with the US EPAWorking with the US EPA

Computer Tools for Sanitary Sewer System Capacity Analysis & Planninghttp://www.epa.gov/nrmrl/pubs/600r07111/600r07111.pdf

Wisconsin DNR CMOM: http://dnr.wi.gov/org/water/wm/cmar/cmom.htm

US EPA Region 1 Working Doc. Nov 2009: Template for Developing Sewer Collection System Preventive Maintenance and Sewer Overflow Response Plan

Sacramento Area Sewer District: estimating SSO’shttp://www.srcsd.com/pdf/ssmp/sso-response-plan.pdf

Photos: http://wn.com/sanitary_sewer_overflow

Useful WebsitesUseful Websites

Contact Information:Ann Gliha

Cuyahoga County Sanitary Engineering216-443-8203

agliha@cuyahogacounty.us

Questions and AnswersQuestions and Answers