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Attachment D CUYAHOGA COUNTY .............................................................................................................................. BOARD OF HEALTH YOUR TRUSTED SOURCE FOR PUBLIC HEALTH INFORMATION November 22, 2023 Attn: Mrs. Laura Weber Cuyahoga County Department of Public Works 2079 East Ninth Street Cleveland, Ohio 44115 Re: Letter of Support for ODOD grant application Dear Laura, I queried the area of Fitch Rd. that your department is interested in the installation of a sanitary sewer. Specifically, I looked at the section of Fitch Rd. north of Cook Rd. up to the North Olmsted line. The majority of the household sewage treatment systems within the proposed project area are of antiquated design with many being documented as known failures. I believe there are approximately 54 homes within the aforementioned area of Fitch Rd. There are 19 systems (35%) that are documented as failing and incapable of treating the wastewater generated from these homes. There are an additional 11 homes whose systems are from the 1950's or earlier (date of install listed as "unknown"). These 11 systems have not been fully evaluated by our department but due to their age and design can all be assumed to be in failure. Including these homes with the documented failures, the total number of failing systems is now at 55%. The majority of the systems left within the project area were installed in the 70's, 80's, and 90's. It's likely that many of these systems are nearing a point of failure or compromised in their ability to properly treat the wastewater generated from these homes. There are only 4 systems within the project area that have been installed in the 2000's. The limited number of effluent samples collected within this project area emphasize the degree to which many of these antiquated systems are failing. For instance, a Fecal Coliform sample collected on August 18, 2008 had a reading of 1,378,788 cfu/100mL (A nuisance condition for this parameter is 5,000 cfu/100mL) Additionally, a sample collected on July 24, 2006 had a reading of 766,667 cfu/100mL. Lastly, a sample collected on June 11, 2013 had a reading of 146,667 cfu/100/mL. Although there is not sampling data for all the systems within the scope of the project area, it can be assumed that systems of similar age and design are generating similar results. �.ON�S Roderick Harris, DrPH Heahh Commissioner 5550 Venture Drive ♦ Parma, Ohio 44130 �'yw Direct: 216.201.2000 ♦ Fax: 216.676.1311 0 www.ccbh.net 4-14