Laserfiche WebLink
<br /> City of Everett, Public Works Department, Water Pollution Control Facility <br /> <br />BIOSOLIDS SAMPLING & ANALYSIS PLAN 9 <br /> <br />each field, this sampling may be abridged to only application years. Sampling is scheduled in April to <br />allow the site to dry from wet weather conditions and to be representative of the soil at the time of <br />application. Sampling methods require the water table to be lower than a foot down, so any sample site <br />that is not sampled due to high water table is marked and recorded. <br />The Department of Ecology requires soil samples to be taken after crop cutting after a season of <br />application of biosolids to monitor the crop uptake of nutrients. A second-round soil sampling will be <br />scheduled by the COE Biosolids Manager on each field once crop cutting has been completed by <br />Snohomish Valley Farms. <br />The timeline of Marshland sampling and application is below: <br /> <br /> <br />COE – WPCF Operations <br />Sample dewatered biosolids on Biosolids Pad February <br />COE – Biosolids Manager <br />Calculate application rates of each field at Marshland, write SSLAP, and submit as part <br />of SVF’s Hauling Bid <br />COE – Procurement <br />COE Biosolids Hauling and Application Project bid opening <br />COE – Biosolids Manager <br />If SVF is low bidder, submit SSLAP to Ecology <br />March <br />COE – IPT <br />Marshland soil sampling April <br />SVF <br />Hauling off Biosolids Pad and application on Marshland May <br />SVF <br />Tilling & planting Marshland May/June <br />COE – IPT <br />Marshland soil sampling <br />September/ <br />October