01/31/2007 Env Bd Packet - Laserfiche WebLink

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• • ATTACHMENT 6 MEMORANDUM DATE: January 25, 2007 TO: Jim Studenski FROM: Marty Asleson RE: Comforts of Home SWPPP Review The following comments should be addressed: 1. This SWPPP must have the responsible manager listed and a 24 hour phone number that this person can be reached. 2. The SWPPP must address dewatering and ensure that no turbid dewatering is done to receiving waters. 3. An alternative /temporary pond should be designated and located on the plan. Dewatering using a temporary perforated outlet is acceptable. Final stabilization note should indicate stabilization will be done with the City native seed mix. Canada wild rye can be increased in the city mix to address any quick stabilization concerns. 4. The site plan must show the location of the SWPPP's location on the construction site, as well as weekly and post rainfall event inspection reports. An onsite mail box is recommended for storing SWPPP information so that the information is available to our storm water inspector. 5. All existing and new storm water catch basins must be protected with a city approved device. Infrasafe, Wimco, or a city approved substitute is required. Filter fabric will not be allowed. 6. The concrete washout area shown on the plan must be designed so that water and material does not leave the wash -out area. If the washout area becomes plugged because of concrete residue, than the washout area must be cleaned out. The developer must indicate to the City how these materials will be disposed (recycled) of. 7. The indicated rock entrance must be installed before grading occurs. A stockpile of rock is recommended to be on site for top- dressing sediment filled rock. Brock White -type "mud mats" may be a suitable substitute for the rock entrance.