City of Rialto / IEUA
Pump Station and Pipeline
Progressive Design Build Award
City of Rialto
Water Subcommittee Meeting
August 28, 2025
• The City of Rialto was interested in monetizing its
recycled water as an annual revenue source.
• Due to the seasonality of recycled water supplies, IEUA needed to augment its recycled water supply during
peak demand months between May and October.
• IEUA and the City of Rialto initiated water resources partnership discussions in 2019 and signed a Final
Agreement Term Sheet on September 27, 2022.
• IEUA has completed their preliminary design and
awarded a Phase 1 Progressive Design Build Contract
to the team of Steve P. Rados and Stantec in July 2025. 2 Background
3 Proposed Infrastructure &
Final Agreement Summary
• City of Rialto RW supply: ≈ 7,840 AFY
• Project considered under Upper SAR MSHCP
• Project Components
• 7 MGD for six months [May to October]
3,500 AFY
• (1) Pump station + pipeline + interconnection
• Up to $1M for supplemental well to meet HCP
discharge requirements
Term
[Years]
Proposed
Commodity Rate
50 $275/AF
Option to purchase beyond
3,500 AFY $375 - $400/AF
• The pump station is located south of the
existing sludge drying beds at the
WWTP.
• A new pad will be constructed using soil
retention blocks.
4 Pump Station Location
• The current proposed pipeline alignment has shifted it east to west alignment. —Was originally expected to be on the north side of the I-10 (in Valley Blvd) —Is now predominantly south of the I-10 (in Santa Ana Blvd) —New alignment has fewer significant alignment conflicts (i.e. utilities, flood control, railroad, bridges, etc.) 5 Proposed Pipeline Alignment
6 IEUA’s Proposed Schedule
7 Questions/Discussion