4J Stadium, Through May 1999 - Laserfiche WebLink

New Search

• Stormwater SDC How should we calculate the stormwater SDC charges for these projects or will they be exempt since they are not part of a bulding or parking lot development? The stormwater SDC applies to any net increase in impervious surface area that discharges to a public stormwater system. The fact that the proposed improvement is not part of a building or parking lot development per se is not reflected in the SDC methodology as being a reason to exempt the resultant impact to the public infrastructure from being charged a stormwater SDC. The current rate for calculation of stormwater SDC $0.148 /square foot of impervious surface area being discharged to a public stormwater system. In the case where the stormwater run -off from a proposed new impervious surface area will be mitigated on -site and not connect to a public stormwater system, an approved Stormwater Retention System application (see general stormwater response for the Sheldon and North Eugene sites) will result in no assessment of a stormwater SDC. The information provided by WBGS regarding the "synthetic" fields indicates that while some or most of the stormwater that will come in contact with the playing fields will drain through the fabric and fill, WBGS will design a private storm line to collect any water that does not percolate. This storm line will need to discharge to an approved stormwater destination point such as an existing on -site piped system or to an approved on -site stormwater retention system. As noted in our meeting, WBGS and District 4J will need to submit information specific to the synthetic fabric and its technical specifications from the manufacturer regarding the extent of its permeable nature and rate of percolation. Staff will review this documentation when submitted and make a determination as to whether the synthetic material meets our expectation of a permeable surface exempt from SDC or if the area of the playing field needs to be evaluated for an equivalent impervious area. An equivalent impervious area is determined in those cases where impacts to the public stormwater system not attributable to impervious area may have SDCs calculated by evaluating at an "equivalent" or lower value of impact. • Parks SDC Per the current SDC methodology, no Parks SDCs are assessed for non - residential development such as proposed by District 4J. • Wastewater SDC What are the calculation requirements for new permanent plumbing fixtures for the MWMC portion of the SDC charges? For the type of impact described, the possible addition of permanent restroom facilities, the regional wastewater (MWMC) SDC is based upon on the net increase in number of Flow Estimation Units (FEUs) created by the development. The FEUs are determined by calculating the total area of the new restroom facility (per 1000 sq.ft.) and multiplying by a factor of $302.64 for schools of this type. For example, a restroom with a bldg foundation area of 1000 sq.ft. will result in a regional wastewater SDC of $302.64.