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N:\5659\018 Providence - ZMA Blk 1 MS 494\04 Design\Reports\5659.018 GPA-ZMA Water & Sewer Tech Memo.docx Page 1
TO: Parker Lange, Development Manager
FROM: Matt Ekstrom
DATE: June 28, 2023
JOB NO.: 5659.018
RE: GPA / ZMA Water & Sewer Tech Memo
CC: file
Urgent For Review Please Comment Please Reply For Your Use
This Tech Memo is a supplement to the Zone Map Amendment and Growth Policy
Amendment Applications submitted for the 39.86 acres of land located at the corner of South
19th Ave. and W Graf St. This land is currently zoned a combination of Residential Low
Density (R-1) and Residential Moderate Density (R-2) and is currently designated by the
Community Plan to be Urban Neighborhood.
The Growth Policy Amendment submitted with this application requests to change a portion of
the property from the Urban Neighborhood to Community Commercial Mixed Use. The other
portion of the property will remain as Urban Neighborhood.
Waste Water Flow Rate – Per Existing Zoning:
The zoning designations of R-1 (33.065 Acres) and R-2 (6.795 Acres). From Table 2-13 of the
2015 Wastewater Facility Plan (shown below).
Zoning R-1 = 546 GPD/AC
Zoning R-2 = 728 GPD/AC
Existing WW Flow Rate = (33.065 Acres) (546 GPD/AC) + (6.795 Acres)(728 GPD/AC)
Total WW Flow Rate = 23,000 GPD
Waste Water Flow Rate – Per Proposed Zoning:
The zoning designations of B2-M (17.485 Acres) and REMU (22.378 Acres). From Table 2-13
of the 2015 Wastewater Facility Plan (shown below).
Zoning B-2 = 2000 GPD/AC
Zoning REMU = 1456 GPD/AC
GPA / ZMA Water & Sewer Tech Memo
N:\5659\018 Providence - ZMA Blk 1 MS 494\04 Design\Reports\5659.018 GPA-ZMA Water & Sewer Tech Memo.docx
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Proposed WW Flow Rate = (17.485 Acres) (2000 GPD/AC) + (22.378 Acres)(1456 GPD/AC)
Total WW Flow Rate = 67,552 GPD
Even though the Flow Rate based off the existing zoning is less than the Flow Rate based off
the proposed zoning we feel the surrounding water and sewer infrastructure is more than
adequate to handle the change in zoning and growth policy designation.
The water and sewer infrastructure surrounding the property requesting the Zone Map
Amendment and Growth Policy Amendment is substantial. Here is an inventory of the
surrounding utility infrastructure:
Water. - There is an existing 24” water main located in South 19th Avenue and a 10” line
located in West Graf Street. Eventually, there will also be water mains located in Arnold Street
to the north and South 15th Street to the east.
Sanitary Sewer. - There is an 18” sewer main located in South 19th Avenue and an 8” sewer
line located in West Graf Street. This property has (2) existing 8” sewer stubs located on South
19 th Avenue. Eventually, there will also be sewer mains located in Arnold Street to the north
and South 15th Street to the east.