HomeMy WebLinkAboutsoils reportSoutheastern Sol] & Environmental Associates, Inc.
P.0- BOX cmv-
FwyenavA�s, SC kwlgi
P hon� Fax �9 -1 3;� 822-4&�O
Jantmry 30, 2013
W Seeft Brown, PE
4D Site Solutions- Inc.
409 Chicago Drnve, Suite 112
Favette-ville, NC 28306
Re: ffirdraullic conducfi ity (permcab iii t-i,) anaiysis & seasonal -ivaterilalhle deaer-minafion,
(SHWT) for proposed storm-water retention area., Spout Springs Cburc. H 348 M Ca
h, I e
Drive, Har.nell County, Norm Carolina
Dear -.klr- Brwtvn-
An evaluation of soil pmperfies and kydraulic conductivity (Ksae) has been conducted at
you re esft on The afareme - lioned pro per t . The Faunpose of the investigation -iNas, to
defcrmi;w soil water fable derths (S11 IWT) based or soil profilles. lin addition., Ksat was to
be proi-ided at varying depths for use Nit h stormNvaler retention- basin- design.
Say umtedhvdraulic conductiv;ty of tJe unsagunaled zonte was measured in a sim-ilar
I I
method as described in the Soil Science Society of America Journal, 'Vol. 5-11, no 5, Sept. -
t_ 1989, "'A Constant Permearneter for M e �
Saturated Hydraulic Conductivity of
the ad se one'- id Compafison of the Glover Solution wit ire simultaneous
Equations, Approadh for Measuring Cdr lie Conductivitv." Thizi consists ofad-vancing
a smaR diameter bore, hole to a predetermined depth- At this dept a consunt head
(press -re I was established and maintained. Flow measiw-ements mere made at fimed
infe}eels after flo-tv stabilized_
Soils at the proposed, baste she are most similar to the LakcIand soil series (see attached
boring, logs)- Six borings were advapxed to va-n;ing depths hemeen 6-0 to 11 .67 feet
below The ground surface- Seasonal High Nkater Table (SHE -f) as determined by
a-- -
evidence of colm of chroma 2 or less (aodl/or concentrations, of kgh redox mottles) ,was.
encountered at depths of 51 to 124 inches below the ground surface. Ubsery Nvater
lex, els -v ere noted in borings at vary, ing depths (see attached),
1�71 = =kJAX R 1A7 � a V�-, V!�Z��z . F % W, 7t C r.,-;._., Iz 1r;-- —:,a 1. t-- — — —a , 1 1. I - .-z.1
Three comp
act care tans 'nea d per-Inew--neter (CCHP) to Nverc conducted at -varidng
depffis beloNv the mnd stuface f see anached)- '111he n-jeasured Ksat Yale ai.-era J,
1� gzed' 39-565
Ir (equivalent to 15.5-17 incheV'bcwr).
The ached p sbloiNs jocations of the sample p, xints a eH as Kscat iocation.
h i
should be noted that The reported SIM, T does not necessaiffly reflect the ele-vation of
static goundwaley (due to vasnations in ground-waier recharge rates'. ama Taini�d-'Rp_
drought condifiops, etc-).
day of analysis-
The data presented in thds yeport wre limited bw a uu r of considerations. The primary
COn.51dera-tion is that soil fsir -nations can I.v highh, variabk-_ -1.1he sorils found on thEk site
car. sulbject to, i-nelusions of other soil -FnS` pecrehed water, artesiam conditions aiadibv
lay,zrs of undulating low pemmieabiliiy clay s_,eam, s. These and other soil conditions can
ha%
I To the ixxIenip(Yssiblc,v"chaNt
identified the soil type-s, that xill maruct the flb-,-,, of ground-,vaten and
professimal opinion as to the depth of SMv'r-
Itrust this is t: e. infbrmation you -require at this, time,
Sincerely,
Mike Eak-eT
NC Licensed Soil Scientist #- 1030
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Southeastern Solal & Environmental Associates, Inc.
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Measured Ksat Rates, Spout Springs Church, HNI Cagle Drive, Harnett
Count,
y, N C
Boring
Ksat
Ksat
Location
Depth (in)
em/hr
in1hr
1
58
4&665
16.010
5
62
38-3,42
15.095
7
46
39.686
15.624
an. n'14i 11.1; *=VA.f 9 1 A 7 4n�xr . Z-?-V, I .a -- - L, I.— I'l--, — - - -
Southeastern Sol] & Environmental Associates, Inc.,
P-01 -Rcuf. 9321
N-28311
Phm-- Fax VZ,-,'-14543
SHWT depth--, Spout Springs Church, HIM Cagg
,le Drive, Harnett
County, NC
BORING SHW-T DEPT14 fiflShesj ObstrNed Water linchLsj
I &? N20ne
5 86 None
6 124 139
7 70 89
8 54 67
9 51 63
E;:V.AL0AT-K'-M' - -S-C"l I ANA4 AX'Xll -'V""_ A!, r -z0'
Southeastern Soil & Environmental Associates, Inc.
P.O. Bak 9K-i
Fayat-qvslle 2-q31 I
R--nz,'Fax MG) 822-4-54-0
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T - OC21 Soil Boring Lo,-{1,5,6 & 7)7 Spaut Springy ClurchH2,N] Cagle Drive, Harnett
Counly� NC
This Makp Unit Con-sisis OrexcessiYely drained soils that formed, in sand-y deposits on uplands.
Slope, ranged from 4 to 7 percent-
A - 0 to 16 inches;, dark yella% ish broyvm (I GYR 4,174) sand'. sin ate grained- loose; many f, ine
r --, clear smooth 'Lhou-n&ry-
C I - 16 to 37 inches-- yeflwvish brown (t GYR loarRy sand, about 10 percent, uncoated sand
weak granular struck -et �e;-y friable, wav
- dual -, bouyl&r
ra I y--
C2 - 37 to 52 incItes, light yelloxvish brown (I OYR 6/4) sand; alx)ut 20 percent timcoated, sand
=rains; =r ins, singO, e graine-d- loose, clear sirnooth bound'ary.
C4 - 52 to 60 inches, fight yello-vvish hrown, (I OY R 614) sand; many prominent strojig bm-.vn
(7.5YR 416) mottles, sin- egrained- jzoosue; clear sm ooth bou n i da
C5 - 60 to 7' i inches-, Is
, yel lowi h broxv, n ( I OYR 519) loamy swirl.:. sin i ed lot se, very
friable; clear :smooth boundary . gle, em n - i
C6 - 71 to 82 inches: strong brown (7.5YR 52'6) sane, loami; weak granular, s-InEcture: Ven-,
fria-ble; clear smooth boom dar%
C6 - 82 to 118 inches- light gray (10YR 711) clean sand- loose; single gained; i
smooth bvundarv. gra - v erg able
fn; c tear
2C I - 118 to 124 inches. ye) I owi-sh brow n ( 10 YR 5,!6) swxl� clad, Ica ; ss iv e s1ruct tj rc; 16r
clear smooth boo an--.
I C 2 - 124- to 14 0 i nch es, mixed y 1-11 Ow ish brown ( I OY R 5 /6) and, iizght gi% ( I OY R W I s W-1 d
clay lc structure, firm.
SHWT at 92 inches in boring 1 (1 OYR 4,`l
SHYVT at 86 inches in boring 5 (1 GYR 4i2)
Z--
SFIWT at 124 ;n-chcs in boring, 6 (1 OYR 411)
SHWT at 70 inches in boringg, 7 (1O 4,11.}
E 2 A. Z -,'A TAO M - S, 0, L-, KV F � -, i V 2'C. � . t LNI-;,, - s T Z = , I t �, f " M n " f ,-- �. n % Z, - re A " , � . .j., - , i , - -. k.,- -
Southeastern Soil &
Environmental
Associates, Inc.
P-0- Sax 9221.
P411101EY Fax 191:01 32:2-
'J�ypkal Soil Bor!Bg Log
(SA 9), Spout Springs Churth, HM Cagle Drive, Barnett County,
NC
This map unit consts-ts of excessh eta drained s s that formed in ssarON deposits onaphinds.
Slope ranged from2'to 4 PereenL
Z'
A - () to 10 inches, dark zravish brovivn,, 10,YR 4127) sand- single ggraiincd, loon:; many finc rools-
epew sqncofn boimejarv.
C! - 101o30inches; yeflowishbrov�n (30YR 5.f6) loamy sand, abovii 10 pervent tincoaled sand
graffls' viedk _=nulaT slaictme; Yen,- friable- gm, ".1 %vavy boundary.
C2 - 3 t 51 inches- iight yellowish brow n( III YR 6e4) sz-nd- sin
gle grained- loose; clear smo*ath
bountlai.y.
C4 — i
to -1 66 Ides; 1h*
a g I gad' ( I OYR 7 i I ) sand; many prominent y-e I Jo-%v-is h brown ( I OY R 5z"6)
monfes, single graineed- km>se� clear smoolh buandarv.
C5 - 66 to 72 inches; le.
� _w-kv (I OYR 5f]) sand-, single 2-imined.; loose, ve-ry fir ab
SPI'9VT at 554 inches in boring, 8 k I OYR TI)
SHWT -it 51 hiches in boring
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