HomeMy WebLinkAboutCorrespondence: review Hamilton CountyOctober 18, 2012
Xenton C. 'Ward, C Ell
Surveyor of .- lamilton County
(Phone (317) 776 -8495
'Fax (317) 776 -9628
Weihe Engineers
ATTN: Eric Carter
10505 North College Avenue
Indianapolis, IN 46280
VIA E -MAIL: cartere @weihe.net
Suite 188
One 3[amilton County Square
.Noblesville, Indiana 4606o -223o
RE: Carmel Seventh -Day Adventist Church Parking Lot
Dear Mr. Carter:
We have reviewed the construction plans submitted to the Hamilton County Surveyor's Office
on September 17, 2012, for this project and have the following comments:
1. The proposed project falls in the incorporated area and MS4 jurisdiction of the City of
Carmel.
2. The proposed project DOES fall in a Carmel Wellhead Protection Zone.
3. The proposed project falls in the Taylor Trace /Cool Creek Regulated Drain
Watershed.
4. Please submit an outlet permit for the direct discharge into the Taylor Trace /Cool
Creek Regulated Drain. The application is available at Surveyor's Form Page.
5. Please provide information that all homes in Taylor Trace will be 2 feet above (LAG
or lowest opening) the proposed 100 year elevation of the shared detention pond.
6. Based on the Taylor Trace as -built drawings, the proposed new 100 year pond
elevation will surcharge the street curb inlets at the 100 year elevation and surcharge
the end section for the drainage swale on the east side at the 10 year event. This
should be explored to protect the homes of Taylor Trace. Maybe the pond should be
expanded to lower the 100 year elevation or backflow prevention should be
considered to eliminate the surcharging of the regulated drain system.
7. Does the existing pond have an adequate and proper elevation emergency overflow?
8. Please submit revised construction plans /drainage calculations after all TAC agency
comments have been addressed.
9. Additional comments may be warranted at a later date.
Should you have any questions, I can be reached at 317 - 776 -8495.
Sincerely,
Greg Hoyes, AC, CFM, CPESC
Plan Reviewer
CC: Angie Conn — Carmel DOCS
John Thomas — Carmel Engineering
Dave Barnes — Carmel Engineering
Greg Ilko — Crossroad Engineers