Item Coversheet

9.B.1.


Shakopee City Council
October 17, 2017


FROM:Steve Lillehaug, Public Works Director/City Engineer
TO:Mayor & Council Members
Subject:
Order an improvement, prepare plans and specifications and approve a draft agreement for payment of special assessments for 225 Sommerville Street South Sanitary Sewer Extension project.
Policy/Action Requested:

Approve Resolution 7947, ordering an improvement and preparing plans and specifications for the 225 Sommerville Street South Sanitary Sewer Extension; and authorize execution of agreement for payment of special assessments for the extension of lateral sanitary sewer to this property.

Recommendation:
Approve Resolution 7947 and authorize execution of agreement.
Discussion:

The single family residential property at 225 Sommerville Street South exists with a private sanitary septic system (holding tank/drainfield system). Until recently, it was assumed this property was connected into the city's sanitary sewer system. It has been further discovered that public sewer is not immediately available to this property.

 

Attached is a memo that provides an evaluation of extending sanitary sewer to this property to eliminate the private septic system. Based on this evaluation, the following proposed recommendation and steps are presented for the City Councils consideration:

 

  1. City to provide public sewer up to the property line at 225 Sommerville Street South.
  2. Obtain written agreement for payment of special assessments.
  3. Proceed with project, obtain bid alternatives for gravity vs. grinder pump system.

 

Costs and funding for the proposed sewer extension project are proposed as follows:

 

COSTS

Public sewer extension     $46,000

Total Costs                        $46,000

 

 

FUNDING

225 Property Owner          $15,000 (fixed amount)

County Grant                     $  6,000 (approximate)

City Sewer Fund                $25,000 (remaining amount to be covered by city)

Total Funding                     $46,000

 

Funding is based on the premise that the property owner would be responsible for a fixed amount of $15,000. This amount is based on an approximate cost for a typical replacement of a septic system. Based on the actual project cost

 

 

and the grant amount received from the county, the city would fund the balance. Should project cost savings be experienced or grant amount increase, this would result in a decrease in the city's funding participation. 

 

It should also be noted that additional costs to the property owner above and beyond as outlined above include the following:

 

  • Sewer Connection Fee (estimated)

              Sewer Connection Permit      $     81.00

              City Trunk Sewer                   $   536.91

              City SAC                                $   475.00

              MCES SAC                            $2,485.00

              Subtotal Sewer Connection   $3,577.91

 

  • Disconnection/abandonment of old system     $To be determined, estimated $2000
  • Connection into new public sewer system       $To be determined, estimated $1000

 

Amounts for the disconnection, abandonment of the old system, and connection into the new system are estimated only. The abandonment of the existing system could be somewhat complex because conditions indicate that the garage was constructed on top of the existing holding tank and drain field. The estimated costs to the property owner for the public system, sewer connection fees, and private work amount to $21,577.91.

Budget Impact:
The Sanitary Sewer Fund would account for approximately $25,000 of the sewer extension project.
ATTACHMENTS:
Description
Background Memo
Resolution 7947
Assessment Agreement
PowerPoint