HomeMy WebLinkAboutNotes, Meeting PLANNER 11/4/2010
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DATE:
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SUBJECT:
~ovember4,2010
Dave Guadagni & Springfield Public Schools
Steve Hopkins
PREIO-00005 Springfield School District Covered Tennis Courts Development Issues
Meeting
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Site: 17-03-35-11-03400; 100110 Street
Public Land and Open Space (PLO) zone
Drinking Water Protection Overlay, 10-20 TOTZ of the Q street well
4 tennis courts, two of them covered. ~o spectator seating, no parking.
Questions:
1. The proposed courts are on the Springfield middle School site. Since this is a minor change
of use (from baseball diamond to tennis courts) we are not sure how some of Code section
4.7-195 applies.
a. Type 2 review will be required if there is any spectator seating, parking, or adverse
impact to the residential neighborhood.
Type 1 minor modification is allowed for conversion of the baseball diamond into
covered tennis courts. The type 1 review is allowed in accordance with SDC 5.17-
105.B.2.v:
"The Director may determine that a Type II Site Plan Review does not apply to
certain changes of use required under Subsections I2.c.i. through iv., above if a
findirlg is made that t:j1e change of use will not have an adverse impact on water
quality and/ or residential uses. In this case, the change of use may be reviewed
under Minimum Development Standards procedures specified in Section 5.5-100
or a Minor Site Plan Modification as specified in Section 5.17-145."
b. Setbacks: The PLO zone does not require a minimum setback from property lines on this
site. The Building code may require a minimum setback.
c. Parking: no parking will be required.
d. TIA: not required if no parking is provided.
2. It appears that there is no easement over a portion of the existing storm sewer pipe running
~ orth-South through the School District property. If further research determines this is true,
will the School District be required to dedicate an easement? If an easement. is required
what width is needed?
There is.an 18" storm drain lines that runs alongside the proposed development. An
easement will be required to be dedicated over this line. A 14' easement is standard for
public works easements over this type of line. A wider easement may be required
depending on depth of the line but in any case will not exceed 20'. As general policy a
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road/path/ sidewalk may be built over the line but not any actual structure (such as a
coverfortenniscour~.
3. Most sites are required to limit their post development storm water runoff to
predevelopment rates. Based on a counter meeting with Clayton McEachern and our civil
engineer Renee Clough, it appears that there are known downstream deficiencies in the
storm water system. Will additional runoff restrictions be placed on the site? If so will the
restrictions be lifted if the tennis courts are installed after the intended system
improvements?
Upon further discussions with staff, the 18" line that runs along the proposed
development has sufficient capacity to accept runoff from the tennis court(s). A small
site study drainage report will be required for this development with an analysis of the
flow entering the 18" storm drain line per requirements in chapter 4 of the engineering
and design manual. If the applicant routes this runoff through a rain garden or other
infiltration facility only an analysis of the infiltration facility will be necessary.
4. A counter conversation between Clayton McEachern and our Civil Engineer Renee Clough
indicated that area drains under covered tennis courts could be directed to the storm sewer.
Can this please be confirmed in a more formal setting?
Typically any area drain in a covered area is required to drain to a sanitary sewer
system. However as this is not an area or use likely to generate significant pollution an
exception can be made in this case. Due to the nature of the facility it may be cheaper
and easier to drain the tennis courts to an adjacent swale area however and this would
be a preferable alternative to hooking up an area drain to the storm system.
5. A counter conversation with Clayton McEachern and a phone conversation with Steve
Graham (both with our Engineer Renee Clough) indicate that the drinking fountain grey
water does not have to be disposed of in the sanitary sewer system. Can this please be
confirmed in a more formal setting? Also, can the drinking fountain be connected directly to
the storm system or will it need to go through some type of treatment first (such as a rain
garden or sand filter?). .
The drain from a drinking fountain can be directed into a infiltration system suitable for
grey water or stormwater runoff infiltration. If a swale is utilized around the perimeter
of the courts in lieu of area drains the runoff from a drinking fountain can be easily
directed. into these. If such a system is not utilized some type of easily constructed
surface infiltration can be utilized for this. If no other option is available the runoff can
be directed into an area drain for the courts.
6. Will we have SDC charges for the site? If so is it possible to get a rough idea of the amount?
There will not be any additional SDC charges for transportation or MWMC or sanitary
sewer for this development. It is being constructed on existing athletic fields as part of
an existing school property. However there will be stormwater SDC charges applied if
the development drains directly into the public storm system. An estimate for this is
included. The final charge may differ if the impervious area is different from those
assumed from the provided plans. If the applicant directs this runoff into some type of
infiltration facility with the capability to handle up to a 10 year storm than no SDC
charges will apply.
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