2 months ago
Below is the written response from BAAQMD & LEA regarding the recent increase of odor:
BAAQMD : “We have also been investigating what source(s) may be contributing to the odor spike the last few evenings. Our Inspector was in Milpitas in the evenings this week and observed some trailers at the MRF that were overfilled and contributing to localized odors at the facility. Jay took pictures of the untarped trailers and I can ask him to forward the pictures he took. Regarding the CASP, I will need to check in with our staff to see if there were compliance concerns and get back to you. They also conducted patrols at ZWED and the wastewaster treatment facility but didn't observe odors from those facilities. “
LEA : “The mild odor we could detect we thought was most likely compost and it was in the afternoon (approximately 2:30 – 3:30 PM). We made this determination based on what direction the prevailing winds were coming from (NW) and where we could detect the odor (SE Milpitas) which is downwind from the compost operations. “ ...
We first toured the top 3 odor sources identified by BAAQMD in 2015 - Newby Island, ZWED and Sewage Plant. We were invited back to tour ZWED this week to get an accounting of how they have addressed the odor issue.
ZWED just completed a 3-year odor study done by Berkeley Lab and paid with federal funds. The full report will be released soon. A 3-page summary of their findings is attached below.
The sources of odor from ZWED have been largely reduced since 2015. ZWED has shut down their composting operations and terminated their plans for the Phase 2 expansion of the food digester. They have moved these operations to Gilroy. With these changes, the odor could not disperse beyond 1,500m (one mile). Before these changes, the odor could disperse up to 4,000m (2.5 miles). The nearest residential area is 2,000m away (1.25 miles). ...
Milpitas to Investigate Smell Problem
If you've been wondering what the smell wafting through Milpitas is, you're not alone. Residents have been putting up with the stench for decades. Drivers who pass the city notice it too. There is a nearby landfill, but it's not clear if that's the only culprit. So now, the city has announced a pilo... ...