2025-12-11 WS & CC Packet - Laserfiche WebLink

Home Browse Search

Intercommunity Water Supply September 26, 2025 Page 2 The WaterCAD computer model of the Lino Lakes water distribution system predicts that the max day demand available fire flows (AFF) at a residual pressure of 20 psi would decrease as follows if served by Centerville alone: Watermark Area Lino Lakes AFF Centerville AFF Single Family 2,000-5,300 gpm 1,100-1,500 gpm Townhomes 3,000-5,500 gpm 1,200-1,300 gpm The City of Centerville would need to demonstrate that it can provide additional fire flow satisfactory to the Lino Lakes Fire Department, and that its storage capacity and trunk watermains can satisfy fire flow to both the Centerville system and the temporary Watermark service area. The City of Centerville would need to demonstrate that its water quality is comparable to that of the City of Lino Lakes and that this large volume of water would not have significantly different water quality that could cause corrosion, scaling, or more serious adverse effects. In particular, manganese concentrations would need to be shown to be less than the Minnesota Department of Health guidance value for infants of 0.1 mg/L. The City of Centerville would need to notify residents in the temporary Watermark service area and respond to any resident concerns. The City of Lino Lakes will be starting up its new Water Treatment Plant (WTP) in the fall of 2026. Due to the complexity of WTP startup sequencing and calibration, this temporary water supply cannot overlap with the WTP startup schedule. M:\\026546-000\\Water - Wastewater\\Data\\TECH MEMO Lino Lakes Centerville Intercommunity Water.docx 25