# Alberta Purchasing #SOR 26-2013-A01-S01

Silver Springs Small-Diameter Stormwater Main Assessment

**Posted:** October 15, 2026
**Respond By:** October 29, 2026
**Identifier:** SOR 26-2013-A01-S01
**NAICS:** 541330

The City of Calgary is seeking consulting services to assess small-diameter stormwater mains in the Silver Springs community.
- **Buyer:** City of Calgary.
- **Requested services:**
  - Screen approximately 8.5 km of stormwater mains with diameters of 450 mm or less.
  - If the screening results warrant it, complete a detailed NASSCO assessment of approximately 8.5 km of mains.
- **Purpose and requirements:** Provide assessment information to support maintenance, rehabilitation, or replacement decisions. The detailed assessment is conditional on the screening results.
- **Named eligible consultants:** Geolyn Inspection Services Ltd and Thuro Inc.
- **Estimated value:** 105,000; the source does not specify the currency.

### Description

The City of Calgary is seeking proposals to assess approximately 8.5 km of small-diameter (≤450 mm) stormwater mains in the Silver Springs community of Calgary. The work includes a screening assessment and, if warranted by the screening results, a detailed NASSCO assessment. The assessments will support maintenance, rehabilitation, or replacement of the stormwater assets. The opportunity is limited to Geolyn Inspection Services Ltd and Thuro Inc., and proposals must be submitted electronically through SAP ARIBA.

[View original listing](https://purchasing.alberta.ca/posting/AB-2026-06895)