Pasadena Water & Power

Recycled Water: Alternative Evaluation

On February 22, 2016, the City Council certified the Environmental Impact Report (EIR) for the Pasadena Non-Potable Water Project (Project). Phase I of the Project includes installation of approximately five miles of new 20-inch diameter pipeline beginning at Scholl Canyon Landfill in Glendale and continuing through residential areas in Pasadena along Linda Vista Avenue, Laurel Street, Parkview Avenue, Arroyo Boulevard, and Rose Bowl Drive among other streets, and constructing a partially buried concrete reservoir at PWP’s Sheldon Reservoir on Arroyo Boulevard.

During the public comment period and at the February 22nd public hearing, several Pasadena residents expressed concerns about the impacts of the pipeline construction along the planned route and offered two alternative routes for consideration. City Council directed staff to return with additional analysis for the two alternative pipeline routes prior to awarding any contracts for the Project. 

Non-Potable Water Project Map with Phase I Alignment and Phase I Options 
Non-Potable Water Project Map with Phase I Alignment and Phase I Options 
click to enlarge

PWP completed the evaluation of the two alternative pipeline routes suggested by residents during the EIR public comment period. The evaluation considered the following criteria for the four routes as shown in the project map above:

1. Impacts to trees as a result of construction
2. Environmental impacts
3. Geohazard conditions
4. Construction challenges due to buried utilities and tree roots and risk of change orders
5. Construction, operation, and maintenance costs
6. Impacts to schedule
7. Potential loss of state grant funding

A certified arborist was retained to evaluate potential impacts to trees that may result from pipeline construction. The evaluation concludes that the approved routes pose low potential impact to trees including Canary Island Pine trees on Laurel Street and that the four routes pose “less than significant” environmental impacts. The evaluation further concludes that the approved routes are superior to the alternative routes mainly in terms of cost and project duration.

Laurel St Final
Cross-section of Laurel Street Showing Utilities Relative to Street Trees  
click to enlarge

Related Documents (PDF)

Alternative Evaluation Report with Construction Cost Estimate
Arborist Report 
 California Environmental Quality Act Assessment of Phase 1 Options 
Sheldon Reservoir Archeological Testing Report
Gnatcatcher Report  
December 6 Community Meeting Presentation  

PWP Contact

Roumiana Voutchkova
(626) 744-4486 


Water Usage Gauge