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Home My WebLink AboutApplication Files_82693_pg0906 r r r Sanitary Sewer r Design 1 ' Introduction Sanitary sewer design flow estimates,as calculated herein,are based on information ' provided by Gaskell Associates Consulting Engineers,Connecticut Public Health Code,and the Connecticut Department of Public Health Technical Standards for sewer design. For the purposes of the analysis,the development includes the Connecticut Studios Project,as previously described,and provides additional ' capacity for development potential of the remaining developable area,as allowed in the CD zone. ' VHB designed a 12-inch gravity sewer main from an existing 30-inch main in Chapel Road,southerly into the subject property,connecting to sewer laterals from all studio buildings,thence southerly to a terminus manhole(SMH 5). VHB designed a dry,4- inch force main from SMH 5. The force main would exit SMH 5 in a southerly direction with a terminus in the landscape area to the south of the Connecticut Studios Site. VHB anticipates that any development of the undeveloped area would r require a pump station to bring sewer to SMH 5. The following sections provide supporting calculations for this design. rConnecticut Studios Sewer Design ■ rStudio Building Design Flow • Office=(22,000 SF)(I person/100 SF)(25 GPD per person)=5,500 GPD r • Production=(estimated 100 persons)(25 GPD per person)=2,500 GPD • Total =(5,500 GPD+2,500 GPD)=8,000 GPD • Average Flow Rate(AFR)at 9 hours of operation= ' (8,000 GPD/9)(1 HR/60 MIN)=14.8 GPM • Peak Flow Rate(PFR)=4 x AFR=59.2 GPM r r IViIDATAwrojects172789.00YeportslTechnkel Supple—A721899emr Meme.d— Sewer Calculations 1