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Home My WebLink About20020459 Ver 1_Staff Comments_20120712d)- oq59 Kulz, Eric From Kulz Eric Sent Thursday July 12 2012 10 09 AM To Tugwell Todd SAW Subject Clayhill Farm Attachments Clayhill Farm Closeout Figure pdf Clayhill Farm topo pdf Clayhill Farm Soils pdf Clayhill Farm LIDAR pdf Hey Todd I have been meaning to look into this further for a while and I finally got to it Please excuse all of the attachments, but I feel like we are going to need this at some point I need to send them in separate emails as I could not send all at once I have attached the closeout figure, the "stream" starts near the western property boundary The topo shows a valley with a stream starting in the central portion of the site, around where we saw the change in character on site The soils map shows a feature extending most of the way onto the western side of the site, and is likely the former stream /ditch that was there before the "restoration" was done The soils on the site are all hydric (some a and some B), but the descriptions don't really sound like alluvial soils The UDAR is quite informative There is no semblance of a valley on the western half of the site In fact there is a ridgeline (old road ?) on the west side of the site So their "stream" actually crosses a ridgeline I have been messing around with a website called USGS streamstats Attached is a topo with the National Hydrography Dataset overlain It actually shows a stream feature originating on the west side of the site and flowing west I also calculated watershed sizes on the site At the top end of the NHD blue line the watershed is 20 acres (TOP on map)A little further down (A on map) the watershed is 27 acres At the confluence with the trib from the north (B on map) the watershed is 108 acres I have attached a summary of Periann's watershed size data from her stream mapping project As you can see, the mean watershed size for a stream origin in the Carolina Flatwoods is 36 acres So based on watershed size, it is possible that the original stream origin was somewhere on the western half of the site, it was not at the western edge of the site, as this crosses the ridgeline We still plan to go out in January or February and give it a thorough look However I have my doubts Eric W Kulz Environmental Senior Specialist N C Division of Water Quality Program Development Unit 1650 MSC Raleigh NC 27699 -1650 Phone (919) 807 -6476 Please note this is a new phone number effective May 10, 2012 Fax (919) 807 -6488 E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties -L6-- ? P A Al -IR E CRAVEN M,. JONES - E01 32 ---R 0 A T A Cam 4k -7= N1- x 32 Davis CN"] ft, A m 30 -01 4 58 ms Magnetic Declination Di IS SCALE 1:24000 0 1 MILES 0 1000 YARDS 0 1 KILOMETER 10* w Copyright (C) 1998, Maptech, Inc r 771 11161F,f p. pax �Y�L dJAr�^ r r a 1 loin set, sh °►t $1I l g Z C c, a� R > c o F USGS StreamStats http:// streamstatsags. cr. usgs. gov/ nc_ ss /default.aspx ?stabbr=nc &dt =13... StreamStats Print Page 4 C JJ\ at l' 7/11/2012 10:39:46 AM W 2 ac, A Ac, LOP z= ZO �C, 1 of 1 fa � Explanation A Glob aWatershedPoint 0 SIp1085poird 0 NCDOTPoir s A LocalG ages A Gaging Station, Continuous Rea Lm Flow Partial Record A Peak Flow PartialRecond Peak and Law Flow Partial Rea A Stage Only Law Flow Padial Record, Stage Mscedaneous Remid Unknown — LocalNND2 — Longesfl— path3D Steam Grid ❑GlobaWatershed ❑Pilot Study Area ❑h.Wy 03 015 0 03 Was Al Nj A / 11/2012 12:40 PM USGS StreamStats http:// streamstatsags. cr. usgs. gov/ nc_ ss/ default.aspx ?stabbr= nc &dt -13... StreamStats Print Page GO? oow o QOT was 7/11/2012 11:16:01 AM 1 of 1 7/11/2012 1:16 PM USGS StreamStats http:// streamstatsags .cr.usgs.gov /nc_ss /default.aspx ?stabbr= nc &dt =13... StreamStats Print Page I low 11 ._ Explanation ,y Globa JUaters hedPOint 0 SIp10e6P pint 0 NCDOTPo,nt: A LocalGages Gaging Station. Continuous Rea Low Flaw Partial Record Peak Flow Partial Record Pew and Lary Flow Partial Recc A Stage On ty A Lora Flout Partial Record, Stage Mscellane— Record A Unknown - -- LocaINHD2 a— Longesffl- patt3D -- - Stream Grid OGIObaNUatershed ❑Pilot Study Ar ea . Oh-p.11- AAWr Oo7 CLO35 O 64Y7 f4w 7/11/2012 11:06:43 AM 1 of 1 7/11/2012 1:06 PM USGS StreamStats i ;�, 1 lofI http: / /streamstatsags.cr. usgs. gov/ nc_ ss/ default.aspx ?stabbr= nc &dt =13... StreamStats Print Page 7/11/2012 11:10:26 AM Explanation OIob& Waimh dPoint 0 SIP1086Poird HC D OT Poi nk A Lo al0ages A Gaping Styiom Coatitwoos Rea Low Flaw Patial Record Pe/s Flaw Patlal Record Pet[ and LawFbw PoU Rea A Stage 0n1y A Low Flory Partial Record. Stage ♦ Mscellaneow Rewrd A Unkmmn — LocaINHD2 — LOnpesfbMptn�D ESFean Gm QOI .Watershed QPpot Study Area ❑lelopely al OOS 0 al w- 7/11/2012 1:10 PM Contributing Drainage Areas by Level IV Ecoregion Channel Heads only E/I and E/P (acres) EPA Level IV Ecoregion Eastern Blue Ridge Foothills Carolina Slatebelt Triassic Basins Sand Hills Northern Outer Piedmont Rollin Coast 1 Plain Carolina Flatwoods Quantile 1 55 016 0 009 Min 023 005 0 010 655 10% 140 147 1 35 1144 253 764 225 25% 3 32 456 267 3193 487 1226 930 Median 496 858 665 4692 1037 2743 3640 75% 654 2921 1466 8580 1635 6828 9700 90% 846 73 12 2106 10475 2729 128 13 18950 Max 15 85 32227 1070 1470 11595 34366 83400 ,\j