HomeMy WebLinkAboutX-A-01 Receive Update on Water Treatment Plant Siting Study City Council Memorandum
To: Mayor Fasbender & City Council Members
From: Ryan Stempski – Public Works Director
Date: September 3, 2024
Item: Receive Update on the Water Treatment Plant Siting Study
Council Action Requested:
Council is requested to receive an update on the Water Treatment Plant (WTP) Siting Study. Staff
recommends scheduling a follow up to this update at the September 16th City Council Meeting with a
closed session pursuant to Minnesota Statutes 13D.05 subd 3(c) to develop offers for purchase of real
property.
Background Information:
A feasibility study determined 3 WTP’s would be required to remove PFAS from the Hastings’ municipal
wells. The location of those plants within the study were a representation of locations near existing
wells and within property owned by the City (to avoid acquisition costs and delays). These locations
were never finalized and are subject to relocation. Public feedback was received, and the City Council
communicated a strong preference for WTP No. 2 and WTP No. 3 to be located outside of residential
neighborhoods. A WTP Siting Study was developed to include City Council’s direction. The feasibility and
cost-effectiveness of a given WTP site depends on several factors:
Sufficient land area owned or available for acquisition
Proximity to existing wells and raw water mains
Proximity to trunk distribution water mains and storage tanks
Proximity to pressure zone facilities (booster pumps/pressure reducing valves)
Proximity to trunk sanitary sewers
Proximity to transportation corridors
Site topography
Some challenges to the study include factoring in the large amount of existing residential neighborhoods
surrounding the wells, the future high-pressure zone planned on the west side of Hastings, finding
property owners open to acquisition, and locating sites out of existing residential but into adjacent or
future residential areas.
Note that WTP No. 1 is located in the Industrial Park surrounded by non-residential land use, therefore
no additional sites were evaluated.
Financial Impact:
To move the original site locations out of residential neighborhoods it required moving the WTPs further
from the wells they were planned to treat and on property that needed to be acquired. For WTP No. 2,
this resulted in a cost increase ranging from $0.6M to $4.5M depending on the site evaluated in the
study. For WTP No. 3, this resulted in a cost increase ranging from $2.8M to $7.2M depending on the
site evaluated in the study.
Attachments:
Presentation to be provided after the Council Meeting update
X-A-01
