HomeMy WebLinkAboutGW00156/DEH98-21_Correspondence_20020702SUBMIT FORM ON YELLOW PAPER ONLY
GROUNDWATER QUALITY -MONITORING:
COMPLIANCE REPORT FORM
p_ACILITY INFORMATION Please Print Clearly or Type
Facility Name: A F_- _DXA V w-m-6 L? ► 4 wi- nEN, + m &-Znti DRr-rNN flc LD
Permit Name (if differeno: TwA" of (-NsT NRchv�A
Facility Address: i S t t:n sT PAxC."va%ty .q'oAo
ell Rle6C-L-%-W—qNCzla%k5(. County
sILvConllact Person: Lett\ 6vt- Oflpra Telephone N$:1C.t/l4a D-rrNS1319
Well Location! Site Name: kf(.46NAtse_!�n 87 `N of Wells to be Sampled:- L_ _
Well Identification Number (from Permit): 8\4-\ For GroundivalerTreatment S stems
Well Depth: 2-0it. Well Diamelec Z' in. Y
Screened Interval: _ to ft. to 7-0 It Check 0ne: ❑ Influent (98)
Depth to Water Level: l3 M. below measuring point. ❑ Effluent (99)
Measuring Poln((M.P.) is:__Z� It, above land surface. Relative M.P. Elevation in ft.:
Gallons of water pumped/bailed before sampling: .3 Date sample collected:
Field analysis: pH , Specific Conductance uMhos
t Temp. °C, Odor Appearance
DEPAR714ENT OF ENVIRONMENT & 14ATUAAL RESOURCES
VlATER QUALITY DIVISiON, GROUNDWATER SECTION
1636 MAIL SERVICE CENTER
RALEIOM. NC 27699-1636 Phone: 19191 733-301.
PERMIT tt: 01- .5 0 EXPIRATION DATE -
Non -Discharge 1-11C
NPDES . Nth
TYPE OF PERMITTED OPERATION BEING MONITORED
Lagoon Remedialion: Infiltration Gallery
Spray Feld Remedlatian:
Rotary Disldbutor Land Application of Sludge
x Other. S f"L TA'ft 9Rrc+nlAtw N'
NOTE: Values should reflect dissolved and O
colloidal concentrations.
Date sample analyzed: 9n t5 SAm&L -111102- Pjrc
Laboratory Name: QN,J►(Lyt°^
Certificalion No. Vw9 # YA txS tw 37"tLl
PARAMETERS (Samples for metals were collected unfiltered YES NO-
and field acidified
COD
mg/l.
Nitrite (NO2) as N
mg/l
Colilorm: MF Fecal
5 /100ml
Nitrate (NO3) as N
1, 5 mgA
Colilorm: MF Total
/100rn1
Phosphorus: Total as P
mg/l
(mole: Use 1APN method for highly turbid samples)
Orthophosphate
mg/I
Dissolved Solids: Total
85 mg/I
Al - Aluminum
mg/I
pH (when analyzed)
�,'1 units
Ba - Barlum
mg/I
TOC
mg/1 ' _
Ca - Calcium
m /i
Chloride
t2.9 mg/i
Cd - Cadmium
mg/I
Arsenic
mg/l
Chromium:,Total
mg/I,
Grease and Oils
mg/I
Cu - Copper
mg/I
Phenol
mg/l
Fe - Iron
mgA
Sulfate
mg/I
hfg - Mercury
rn /l
Specific Conductance
uMhos
K - Potassium_,mg/I
Total Ammonia
0.1 mg/l
. Mg - Magnesium
mgll
TKN as N
mg/I
Mn - Manganese
mgA
YES NO)
Ni - Nickel mg!!
Pb - Lead rng/I
Zn - Zinc mg/I.
Ammonia Nitrogen mC1/j
Other (Specify Compounds and Concen( to UHIN)
yri
ORGANICS: (GC,GC/MS,NPLC) -'` Cn
cn
(Speciry'lest and. method 9. Attach lab•leortr
Report Attached? Yes (1) No—)
VOC : method B
method 9
malhod n
Permitlee (or Authorzed Agent) Name and Tille • Please print or type
Slgnalure of Pelmitlee (or Authorized Agonl) (Ogle)
SUBMIT FORM ON YELLOW PAPER ONLY
GROUNDWATER QUALITY. MONITORING:
COMPLIANCE REPORT FORM
FACILITY INFORMATION Please Pant Clearly oe Type
Facility Name:N06,o1a V\Waro>< LP �REA�M�rut SYS�nr� Aft,��N t=�c�P,
Permit Name (if different): EAtT A'2k%x'xA-
Fartlity Arlrlroee- I S I to (ZrK"C J>4.A01Ar %%)1-0
County
Ql.h >J
tot (Stale► (zip)Conlact Person: �O^ 64`4^` o
i-- Telephone N;-910 - E5s•`f38g
Well Locationl Site Name; Prtalt�V�1t�L W-7 9fV"a� No. of Wells to be Sampled:
Well Identification Number (from Permit); e
dwalerTreatment5ysteras
Well Depth: 0It. Well Diameter: Z ►n. e: ❑ Influent (98)
Screened Interval: 1� ft. to * Z° It. ❑ Effluent (99)
Depth to Water Level: 14- ff. below measuring point.
Measuring Point (M.P.) is: L it. above land surface. Relative M.P. Elevation in ft.:
Gallons of water pumped/baifed before sampling: 3o Date sample collected: -1-L-'
Field analysis: pH , Specific Conductance uMhos
Temp. °C, Odor Appearance
DEPARTMENT OF ENVIRONMENT & NATURAL RESOURCES
WATER OUAUTY DIVISION, GROUNDWATER SECTION
1636 hfAIL SERVICE CENTER
PERMIT#. 0 1 - 57 s fo EXPIRATION DATE:
Non -Discharge UIC
NPDES R
TYPE OF PERMITTED OPERATION BEING MONITORED
Lagoon Remedialion: Infiltration Gallery'
Spray Feld RemlxllaGon:
Rotary Distributor Land Appllcalion of Sludge
Other: 54(' 1�t t Anr� �ltrR�N F1t t�fl
NOTE: VAIUeS should reliert tilaanlvnrl anel
colloidal concentrations.. t �4,
Date sample analyzed: PAry ac SMnr�L 7I-L --LL Pmm °�s �zt.P--=,'�1 �11
Laboratory Name: - GN 4%M-04 f^^ n
Certification No. t "\A R 'iA--94 DL S W 511-Ly
PARAMETERS.(Samples for metals were collected unfiltered YES NO
and field acidified
COD
mg/I .
Nitrite (NO2) as N
mg/1
Coliform: MF Fecal
< Z
/100ml
Nitrate (NO3) as N
1.35 mgA
Colilorm: MF Total
/100ml
Phosphorus: Total as P
mg/I ,
(Note: Use MPtt method for highly turbid
samples)
Orthophosphate
mg/.I
Dissolved Solids: Total
mg/l
Al - Aluminum
m9/1
pH (when analyzed)
5.t`?
units
Ba - Barium
mg/t
TOC
mg/I
Ca - Calciumrrtg/l,
Chloride
mg/l
Cd - Cadmium
mg/I
Arsenic
mg/[
Chromium: Total
mg/l,
Grease and Oils
mg/i
Cu - Copper
Mgt)
Phenol
mg/I
Fe - Iron
mg/I
Sulfate
mg/I
Hg - Mercury
m9 /l
Specific Conductance
uMhos
K - Potassium
mg/I
Total Ammonia
moo•
mg/l
Mg - Magnesium
m /l
TKN as N
mg/I
Mn - Manganese
mg/l
YES, NO)
Ni - Nickel
mqA
Pb -'Lead
® rn I
Zn - Zinc
l"X:imil
Ammonia Nitrogen
r— mhlf '
Other (Specify Compounds and Concenlr�rt' 56
n
Cj
� rn~
rr
ORGANICS: (GC,GCIMS,HPLC)co
(Speciry•test and method N. Attach
lab reporF)
Report Attached? Yes (1)
No (0)
VOC : method N =
method pr =
: method it =
Permittee (o(AuthoRzed Agent) Name and Title r Please print or type
Slpnalure of f'ormittee (or Authorized April) (Dale)
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HUC U1 Ue U;zJ: CUa 2]Rl rr MKJ WtL''L 11KLL1110 ,jiuj /1L (tf / P. 1
Environmental Chemists, Inc.
.� 6602 Windmil] Way - Wilmington. North Carolina 28405
�.
(910) 392-0223 (Lab) • (910) 392-4424 (Fax) . .
Echem*VCaol.com
CONSULTING
CHEMISTS. NCDENR: DWQ CERTIFICATE 464, DLS CERTIFICATE #37729
Customer:
SKIPPER'S WELL DRILLING Date of Report: July 12, 2002
P.O. Box 250
Leland, NC 28451-• Purchase Order #:
Attn: Charlie Skipper
Report Number: 2-3520
REPORT OF ANALYSIS
Date Sampled: 07-02-02
Sampled By: Ricky Skipper
GROUNDWATER: MONITORMG WFLY 4
Report To: Charlie Skipper
Project: East Arcadia MW
LAB ID
MW 1A
# 7862
MW 1B
# 7863
pH, Standard Units
5.70
5.14
Chloride as Cl - mg/L
12.9
8.72
Total Dissolved Solids, TDS mg/L
85
46
Nitrate Nitrogen, NO3 - N mg/L
.1.85
1.35
Ammonia Nitrogen, N113-N mg1L
0.1
< 0.1
Fecal Coliform, colonies/100 mL
5
< 2
Comments:
Reviewed by: , 'y . K - • (/,'� (�?v �+LC
=.vwm LEA
NCDENR
JAMES B. HUNT JR
G 0 V SR\OR
BILL HOLMAN
SECRETARY
11E1N1ORA.:i DU`M
To:
Through
From:
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
GROUNDWATER SECTION
September 15, 2000
Bill Jeter, Chief
On -Site Wastewater Section
Ted Bush/ /r l;
David Goodrich )7 5
DIVISION OF WATER QUALITY
MOVED
AW 15 2002
=: - F_A qLLE REGIONAL OFtICE
KER R,Ty
DIRECTOR
Subject: Repair Project for the Town of East Arcadia
Arcadia Village
' 9,360 GPD Conventional LLP Treatment System
B laden County
DEH 98-21-R/GW00156
(Steven Berkowitz: DEH SERG.'Review Engineer)
-: The Groundwater Section is in receipt of the subject application to install a
conventional wastewater treatment system to treat the domestic wastewater stream
created by an existing 30-unit apartment•complex. This project was previously reviewed
:•. in November of 1998 under DEH 98-21/GW98126 and a new site had to be found
" because of legal constraints.
Although the system is designed to handle a wastewater loading of 9,360 gallons
per day, the.water bills for this apartment complex have indicated an average usage of
'- approximately 4,650 gallons per day. The system design includes a septic tank and
r; approximately 3,114 linear feet of distribution line (see Figures 1, 2, and 3). A soils
%� •1� .; 1
:.......:'�.::� scientist evaluated the suitability of the site, and a number of field tests were performed
-- _ :�� .•.� to ascertain the elevation of the seasonal high water table and the
E permeability of the subsoils. The seasonal high water table was found to be
M- approximately five feet below the surface of the proposed diainfield area .The
permeability of the shallow subsoil was measured with a permeameter, and the
permeability of the deeper saturated soil was measured by performing slug tests. The
permeameter tests and slug tests indicated that the permeability of both the saturated and
unsaturated zones was high, and the transmissivity of the saturated zone under seasonal
high water table conditions was conservatively estimated to be approximately 390 feet
squared per'day.
The soil scientist used the Colorado State University Mounding Model to
�=1k estimate the mounding which could be expected to take place beneath the drainfield
under maximum design flow conditions. The modeling indicated that a maxi MU
mound height of approximately 1.6 vertical feet could be expected beneath the cen
G GC�ION
the drainfield_ after a full year of continuous loading at the design rate of 9,360'gallons per day. The
system was also modeled by the Groundwater Section using a similar modeling program and a
drainfield configuration that more closely matched the design specifications. The modeling
performed by the Groundwater Section indicated a maximum mound height of 1.67 feet after ttivo
full years of continuous loading. These modeling results, and the much lower loading rates which are
anticipated for this system, suggest that mounding will not be a concern.
The function of the system was also simulated by the Groundwater Section to estimate the
impact of the drainfield on groundwater quality. The modeling program (FLOTRA-tiS) was used and
indicated that the proposed system would have a significant impact on groundwater quality and that
attenuation by rainfall dilution and other natural conditions may not be sufficient to achieve the
required Groundwater Quality Standards (15A NCAC 2L .0202) before the ground water travels to
the Compliance Boundary. In view of these results, the Groundwater Section recommends that
monitor wells be installed at upgradient and do,.vngradient locations near the drainfield (see Figure
2). These. two wells (iviW-1 and MW-2) should be sampled every March, July, and November for
,Ammonia Nitrogen. Nitrate Nitrogen, TDS, Chlorides, pH, Fecal Coliforms, and Water Level.
The Groundwater Section has reviewed the subject permit application and recommends issuance of
the permit with the following conditions:
Prior to beginning waste disposal operations, two'monitor wells; one upgradient (1iW-1) and one
downgradient (yiW-2), shall be installed to monitor groundwater quality. The well(s) shall be
constructed such that the water level in the well is never above or below the screened (open)
portion of the well at any time during the year. The general location and name for each well is
marked on Figure 2. Each monitoring well shall be located at the review boundary, constructed in
accordance with this permit, and approved by the Fayetteville Regional Office.
Monitor wells MW-1 and MW-2 shall be sampled initially after construction and thereafter every
March, July, and November for the following parameters:
Ammonia Nitrogen
TDS
PH
Water Level.
Nitrate Nitrogen
Chlorides
Fecal Coliforms
The measurement of water levels must be made prior to sampling for the remaining parameters.
The depth to water in each well shall be measured from the surveyed point on the top of the
casing.
The measuring points (top ofwell casing) of all monitoring wells shall be surveyed to provide the
relative elevation'of the measuring point for each monitoring well.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section; Permits and
Compliance Unit, 1636 Mail Service Center, Raleigh, N.C. 27699-1636 on or before the last
working day of the month following the sampling month.
3. All wells that are constructed for purposes of groundwater monitoring shall be constructed in
' accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other .than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
.4. The Fayetteville Regional Office, telephone number (910)486-1541, shall be notified at least
forty-eight (48) hours prior to the construction of any monitoring well so that an inspection can be
made of the monitoring well location. Such notification to the regional groundwater supervisor
shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on tilonday through
Friday, excluding state holidays.
5. Within sixty (60). days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1 ":100') signed and sealed by a
professional engineer or a state licensed land surveyor that indicates all of the following
information:
a. the location and identity of each monitoring well, —
b. the location of all components of the waste disposal system,
C. the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the "measuring
point"), and
f. the depth of water below the measuring point at the time the measuring point is established.
This survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56. The
surveyor shall establish a horizontal control monument on the property of the waste disposal
system and determine the latitude and longitude of this horizontal control monument to a
horizontal positional accuracy of+/-10 feet. All other features listed in a. through e. above shall
be surveyed relative to this horizontal control monument. The positional accuracy of features
listed in a. through e. above shall have a ratio of precision not to exceed an error of closure of 1
foot per 10,000 feet of perimeter of the survey. Any features located by the radial method will be
located from a minimum of two points. Horizontal control monuments shall be installed in such a
manner and made of such materials that the monument will not be destroyed due to activities that
may take place on the property. The map shall also be surveyed using the North American Datum
of 1983 coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System (GPS) is
used to determine the latitude and longitude of the horizontal control monument, a GPS receiver
that has the capability to perform differential GPS shall be used and all data collected by the GPS
receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section, NC
Division of Water Quality, P.O. Box 29578, Raleigh, NC, 29626-0578.
6. Within thirty (30) days of completion of all well construction activities, a certification must be
received from a professional engineer or a licensed geologist certifying that the monitoring wells
are located and constructed in accordance with the Well Construction Standards (15ANCAC 2C)
and this permit. This certification should be submitted with copies of the Well Completion Form
(GW-1) for each well. Mail this certification and the associated GW-1 forms to the Permits and
Compliance Unit, Groundwater Section, P.O-. Box 29578, Raleigh, NC, 27626-0578.
7. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall submit
a copy of the GW-1 Form (Well Completion Form) with the Compliance Monitoring Form (GW-
59) for that well. Compliance Monitoring Forms that do not include copies of the GW-1 form will
be returned to the permitted without being processed. Failure to submit these forms as required by
this permit may result in the initiation of enforcement activities pursuant to NC General Statutes
143-215.6.
The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for ground
absorption and disposal systems which are permitted under 15ANCAC 18A .1900 are established
at the property boundary in accordance with 15A NCAC 2L .0107(i). An exceedance of
Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate
remediation action in addition to the penalty provisions applicable under General Statute 143-
215.6A(a)(1).
Page 4 of 5
V
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal
systems midway between the Compliance Boundary and the perimeter of the waste disposal area.
Any exceedance of standards at the Review Boundary shall require remediation action on the part
of the permittee.
9. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
If there are any questions please let me know
cc: Art Barnhardt
Permit Files
--GW00156--
Page 5 of 5
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SCALE IN FEET p 1
0 2,000 4,000 ��, y FIGURE 1
J� TOWN OF EAST ARCADIA
ARCADIA. VU-JAGE
PP SYSTEM
9,360 GPD L
Lip
111
IL
I%-- -
I
FIGURE 2
TOWN OF EAST ARCADIA
A-RCADIA VII-IAGE
9,360 GPD LPP SYSTEM
nT A n'P-?'J (-nTT'1'
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nr cll
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F FIGURE 3
50 l oo f1 'TOWN OF CAST ARCADIA
ARCADIA VTLLAGC
9,360 GPD LPP SYS1'CM
BLADCN COUNTY
DPI -I 98-21-R/G W00156
SI`I'IP, DKI'AIL MAP
LAB -. 7
LAWGIBB_ Group Member
LETTER OF TRANSMITTAL
I
TO:
FROM:
PROJECT / JOB NO: DATE:
N G
!r K)
S-7 . a
PROJECT:
- co eo UNCw
Lo
Co3U IM L S IoE C.
.SUIT'S 1 a
DESCRIPTION:
U C zaco-7
ATTN:
ATTN:
v 1
WE ARE SENDING YOU ❑ ATTACHED ❑ UNDER SEPARATE COVER VIA
THE FOLLOWING ITEMS:
❑ DRAWINGS ❑ SPECIFICATIONS ❑ PRINTS ❑ SAMPLES ❑ CHANGE ORDER ❑ BROCHURES / PHOTOS ❑ CORRESPONDENCE
❑ OTHER
W—
THESE ARE TRANSMITTED AS CHECKED BELOW:
❑ FOR APPROVAL ❑ APPROVED AS SUBMITTED
❑ FOR YOUR USE ❑ APPROVED AS NOTED
❑ AS REQUESTED ❑ RETURNED FOR CORRECTIONS
❑ FOR REVIEW AND COMMENT ❑ OTHER
❑ PRINTS RETURNED AFTER LOAN TO US ❑ FORBIDS DUE:
ULrW .7D oo-O —
❑ RESUBMIT COPIES FOR APPROVAL
❑ SUBMIT COPIES FOR DISTRIBUTION
❑ RETURN CORRECTED PRINTS
REMARKS: A- T,�IcGNIED BL S C JE1 Iji� cc, T>IeEf> o -1'1-lam
—GI-4 6- ND Out: -
COPIES TO: ��-� 7 "� L'�yhl �' SIGNED:
(9/98) IF ENCILOSUREt RECEYVEO ARE NOT AS LISTED ABOVE, PLEASE NOTIFY US AT ONCE.
°+
N
1 JAM; HUNj,JR
_ `tu
ji. ,ILL.`- LMAN'
"SECRETARY
KERB T.,`STEVEM3t,,' S
DIRECTOR
•- ; i
t
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
DIVISION OF WATER QUALITY
September 13, 2000
M E M O R A N D U M
TO: David Goodrich
DWQ-GW Section, RCO
Parker -Lincoln Bldg.
Through: Art Barnhardt,
DWQ-GW Section
From: Billy Meyer, Hydrogeological
Technician II, DWQ-GW Section, FRO
SUBJECT: Comments on the'Repair/Alteration of Exist.
Disposal System [DEH]: Town of East Arcadia,
Arcadia Village (DEH98-21-R, GW00156)
As requested, the Fayetteville Regional Office has
completed review of the subject facility and it's
need for groundwater monitoring in lieu of the
repair/alteration of the existing disposal system.
According to the submitted information and our
field evaluation, the soil area designated is
suitable for on -site wastewater disposal.
Attachments•
Please notice the maps attached to this memo. USGS
aerial and topo maps are included. The approximate
location of the LPP drainfield is indicated on each
map.
Discussion•
The drainfield is located on a ridge which is
situated near a tributary that flows into the Cape
Fear a short distance downstream. The gradient
between the drainfield and the stream is relatively
GROUNDWATER SECTION
1636 MAIL SERVICE CENTER, RALEIGH, NC 27699-1636 - 2728 CAPITAL, BLVD., RALEIGH, NC 27604
PHONE 919-733-3221 FAX 919-715-0588
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER
steep. The soil profile indicates a deep/highly
permissive sandy texture. ,.The sandy profile, short
distance, & steep gradient (between the stream and
drainfield) increases the chance for contaminated.
groundwater to threaten surface water quality in
the stream. The stream will probably dilute the
contamination, but nevertheless discharge its load -
into the Cape Fear.
The following table compares the proposed LPP
system to_a 4 bedroom conventional system with
respect to Nitrogen discharged and estimated GW
impact.
4 BR
(convention'1)
LPP
Drainfield area
(sf)
1,440
28,917,
Vol WW (GPY)
175,200
3,504,000
N prod. (Lb/yr)(Z)
58.4
1,167
N discharged
(lb/acre/yr)
1,765
1,758
-N conc. in
GW(PPm)«�
35.7
35.7
j' GW concentration assumed vol WW discharged in
drainfield and 2' of annual GW recharge. All of
the N was assumed to move to GW (sandy profile
and no plant removal).
(z) Assumed N conc of domestic waste --40 ppm.
The nitrification lines in the drainfield are
installed below the rootzone, therefore not much of
the Nitrogen discharged in WW will be,removed by
plants.
Remarks/Recommenadations :
The proposed LPP system is suitable with respect to
the section .1900 rules (DEH). However this system
will probably create exceedances in 2L groundwater
standards and possibly .0200 surface water
standards.
The proposed system will probably not contaminate
groundwater any more than -a conventional system on
an equivalent basis, but the LPP system discharges
more wastewater and covers a larger area.
Therefore given the site conditions described
earlier, this system poses a potential threat to
groundwater and surface water quality.
The GW Section (FRO) recommends issuing the permit
with groundwater monitoring.,See the attached topo
map for the approximate' location of monitoring
wells.
*Sample Parameters: NO3-N, NH4-N, pH, TDS, FC
& Cl.
*Sampling Schedule: Mar, July, & Nov.
GROUNDWATER SECTION (FRO)
GW#:00156 DEH#:_ 98-21-R
Review by: Billy Meyer Date: September 13, 2000
Field Investigation? (Y/N):—Y-Qs County:_Bladen
Facility Name: Town of East Arcadia, Arcadia Village
Location: off NC Highway 87 South in Southeastern Bladen County
Disposal •Systemlow Pressure Pipe System
Design Cap. (GPD):9600
Description of.Facility:3_.5 mile force main, septic tank, drain field w/LPP distribution 9' center-, with ' trench
Size of Impoundment (Ft. Sq.) &/or Size of Application Area: — 81' x 357'
Waste Source:
Mun. Sludge ; Mun. W.Water
Ind. Sludge ; Ind. W. Water
Distance from Waste Source to nearest:
Stream: —52517t.
Well:-350-400 Ft
For Well: Type of use: Private
Primary Secondary Tertiary
Others: Domestic(Primary)
Depth: Pump Rate (Est):
What design conditions will reduce/increase chance ofgw contamination?: (increase) Using the proposed
hydraulic loading rate of 1.0 gpd/ft2 and the drain field area (-30,000 fe), approximately 1,719 IN; ofN are an 1p ed
per acre (annually). The waste is applied below the root zone and therefore most of mobile nutrients will leach to
groundwater.
1 . el! • .1 1 . • ••e• /lel - 1NOW
1 1• 1� ! • • 1l.e 1•"•1'. 1 1" • 1
• .. . , 1 - , •� • 1" .•- ♦. \. •1 ell. !• -10 •.11 .: - !• • •- •11" • -- .1
Depth to: Bedrock--92Ft., Seasonal High W.T.-4.5Ft,, Annual W.T. Flux —
Surficial Aquifer: Bedrock/ Confined Aquifer:
Gen. Lithology: Sandy -loamy sand Gen. Lithology: sand/limestone
Hyd. Cond.: 2-20 Ft./Day Hyd. Cond.: —33 Ft./Day
❑Measured X Estimated ❑Measured X Estimated
Thickness: —50 Ft.
Legrand: Site Numerical Description=19 - 4 Z -2 - A Y
T 1 2 3 4 5 6 6A 6B
Hydrogeologic Site Grade: E Situation Grade: 4A
No. of Monitoring Wells: Proposed: Up1 Down -I � Existing: Up-0- Down 0
Proposed Sampling Schedule & Parameter(s):NO3-N, NH4-N, pH, TD , C, & Cl. Sample every Mar, Jtil�&&
Nov.
Have there been any exceedences of the groundwater standards? Yes_NoIWA-
Has any enforcement action been taken? Yes_ NO N/A Date of Action:
Summary of enforcement action taken:NLA
Remarks/Recommendations ( Continue on Reverse, if necessary): SEE ATTACHED MEMO
Hyd. Regional Supervisor
T, BILL:.kOLMAN
' .n.
.'SECRETARY
�' ..
�.� NORTH CAROLINA-DEPARTME-N-T-OF
ENVIRONMENT AND NATURAL RESOURCES
GROUNDWATER SECTION
September 15, 2000
MEMORANDUM
To: Bill Jeter, Chief
On -Site Wastewater Section
Through: Ted Bush(4
DIVISION OF WATER QUALITY
�c
8 E P 2 n 2000
CW;�:Yi=-t T EML im
REG. OFFICE
From: David Goodrich
Subject: Repair Project for the Town of East Arcadia
Arcadia Village
_9,360_GP_D Conventional LLP Treatment System
Bladen Courrty___
DEH9.8-2.1-R/_GWOO 15-6
(Steven Berkowitz: DEH SERG Review Engineer)
The Groundwater Section is in receipt of the subject application to install a
conventional wastewater treatment system to treat the domestic wastewater stream
created by an existing 30-unit apartment complex. This project was previously revie«-ed
in November of 1998 under DEH 98-21/GW98126 and a new site had to be found
because of legal constraints.
Although the system is designed to handle a wastewater loading of 9,360 gallons
per day, the water bills for this apartment complex have indicated an average usage of
approximately 4,650 gallons per day. The system design includes a septic tank and
approximately 3,114 linear feet of distribution line (see Figures 1, 2, and 3). A soils.
scientist evaluated the suitability of the site, and a number of field tests were performed
to ascertain the elevation of the seasonal high water table and the
permeability of the subsoils. The seasonal high water table was found to be
approximately five feet below the surface of the proposed drainfield area .The
permeability of the shallow subsoil was measured with a permeameter, and the
permeability of the deeper (saturated) soil was measured by performing slug tests. The
permeameter tests and slug tests indicated that the permeability of both the saturated and
unsaturated zones was high, and the transmissivity of the saturated zone under seasonal
high water table conditions was conservatively estimated to be approximately 390 feet
squared per day.
The soil scientist used the Colorado State University Mounding Model to
estimate the mounding which could be expected to take place beneath the drainfield
under maximum design flow conditions. The modeling indicated that a maxi `
mound height of approximately 1.6 vertical feet could be expected beneath the cent
GR.OUNDN•ATER• SECTION
1636 MAIL SERVICE CENTER, RALEIGH, NC 27699-1036 - 2726 CAPITAL, BLVD., RALEIGH, NNC 27CO4
PHONE 519-733.3224 FAX 919 y16-OS88
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST-CON'SUMI£R TAPER
the drainfield after a full year of continuous loading at the design rate of 9,360 gallons per day. The
system was also modeled by the Groundwater Section using a similar modeling program and a
drainfield configuration that more closely matched the design specifications. The modeling
performed by the Groundwater Section indicated a maximum mound height of 1.67 feet after two
full years of continuous loading. These modeling results, and the much lower loading rates which are
anticipated for this system, suggest that mounding will not be a concern.
The function of the system was also simulated by the Groundwater Section to estimate the
impact of the drainfield on groundwater quality. The modeling program (FLOTRANS) was used and
indicated that the proposed system would have a significant impact on groundwater quality and that
attenuation by rainfall dilution and other natural conditions may not be sufficient to achieve the
required Groundwater Quality Standards (15A NCAC 2L .0202) before the ground water travels to
the Compliance Boundary. In view of these results, the Groundwater Section recommends that
monitor wells be installed at .upgradient and downgradient locations near the drainfield (see Figure
2). These two wells (MW-1 and MW-2) should be sampled every March, July, and November for
Ammonia Nitrogen, Nitrate Nitrogen, TDS, Chlorides, pH, Fecal Coliforms, and Water Level.
The Groundwater Section has reviewed the subject permit application and recommends issuance of
the permit with the following conditions:
1. Prior to beginning waste disposal operations, two monitor wells; one upgradient (MW-1) and one
downgradient (MW-2); shall be installed to monitor groundwater quality. The well(s) shall be
constructed such that the water level in the well is never above or below -the screened (open)
portion of the well at any time during the year. The general location and name for each well is
marked on Figure 2. Each monitoring well shall be located at the review boundary, constructed in
accordance with this permit, and approved by the Fayetteville Regional Office.
2. Monitor wells MW-1 and MW-2 shall be sampled initially after construction and thereafter every
March, July, and November for the following parameters:
Ammonia Nitrogen Nitrate Nitrogen
TDS Chlorides
PH Fecal Coliforms
Water Level.
The measurement of water levels must be made prior to sampling for the remaining parameters.
The depth to water in each well shall be measured from the surveyed point on the top of the
casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the
relative elevation of the measuring point for each monitoring well.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit,1636 Mail Service Center, Raleigh, N.C. 27699-1636 on or before the last
working day of the month following the sampling month.
3. All wells that are constructed for purposes of groundwater monitoring shall be constructed in
accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
4. The Fayetteville Regional Office, telephone number (910)486-1541, shall be notified at least
forty-eight (48) hours prior to the construction of any monitoring well so that an inspection can be
made of the monitoring well location. Such notification to the regional groundwater supervisor
shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through
Friday, excluding state holidays.
5. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1 ":100') signed and sealed by a
professional engineer or a state licensed land surveyor that indicates all of the following
information:
a. the location and identity of each monitoring well,
b. the location of all components of the waste disposal system,
c. the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be lmown as the "measuring
point"), and
f. the depth of water below the measuring point at the time the measuring point is established.
This survey shall be conducted using approved practices outlined in North Carolina General.
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56. The
surveyor shall establish a horizontal control monument on the property of the ,%vaste disposal.
system and determine the latitude and longitude of this horizontal control monument to a
horizontal positional accuracy of+/-10 feet. All other features listed in a. through e. above shall.
be surveyed relative to this horizontal control monument. The positional accuracy of features
listed in a.. through e. above shall have a ratio of precision not to exceed an error of closure of 1
foot per 10,000 feet of perimeter of the survey. Any features located by the radial method will be
located from a minimum of two points. Horizontal control monuments shall be installed in such a
manner and made of such materials that the monument will not be destroyed due to activities that
may take place on the property. The map shall also be surveyed using the North American Datum
of 1983 coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System (GPS) is
used to determine the latitude and longitude of the horizontal control monument, a GPS receiver
that has the capability to perform differential GPS shall be used and all data collected by the GPS
receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section, NC
Division of Water Quality, P.O. Box 29578, Raleigh, NC, 29626-0578.
6. Within thirty (30) days of completion of all well construction activities, a certification must be
received from a professional engineer or a licensed geologist certifying that the monitoring wells
are located and constructed in accordance with the Well Construction Standards (15A NCAC 2C)
and this permit. This certification should be submitted with copies of the Well Completion Form
(GW-1) for each well. Mail this certification and the associated GW-1 forms to the Permits and
Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578.
7. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall submit
a copy of the GW-1 Form (Well Completion Form) with the Compliance Monitoring Form (GW-
59) for that well. Compliance Monitoring Forms that do not include copies of the GW-1 form will
be returned to the permittee without being processed. Failure to submit these forms as required by
this permit may result in the initiation of enforcement activities pursuant to NC General Statutes
143-215.6.
8. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for ground
absorption and disposal systems which are permitted under 15ANCAC 18A .1900 are established
at the property boundary in accordance with 15A NCAC 2L .0107(i). An exceedance of
Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate
remediation action in addition to the penalty provisions applicable under General Statute 143-
215.6A(a)(1).
Page 4 of 5
4
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal
systems midway between the Compliance Boundary and the perimeter of the waste disposal area.
Any exceedance of standards at the Review Boundary shall require remediation action on the part
of the permittee.
9. Any additional groundwater quality monitoring, as deemed necessary by'the Division,.shall be
provided.
If there are any questions please let me know.
cc: Art Barnhardt
Permit Files
--GW00156--
Page 5 of 5 ,�
1
f: ',Cem East
onio'n Arcadia .. /
Ch
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idia
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57
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SCALE IN FEET
0 2,000 4,000 /60 FIGURE 1
TOWN OF EAST ARCADIA
ARCADIA VII.LAGE
9,360 GPD LPP SYSTEM
BLADEN COUNTY
DEH 98-21-R/GW00156
- ... -. SITE LOCATION MAP
Z. rl
ILI
AMOLI& 00
ON L mw-
11 IF 1,
mw-1
40
Seal e
FIGURE 2
loo 200 TOWN OF EAST ARCADIA
ARCADIA VILLAGE
9,360 GPD LPP SYSTEM
BLADEN COUNTY
DEH 98-21-R/GW00156
PROPOSED WELL LOCATION MAP
too, RfW
Ir
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34.4
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TYPICAL
FM I
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.
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\ \
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REMAIN
AND ONE VB INCH ONI.
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1 R f.ON EACH END.
SUIVACC OVCR TRENCHES AS
31 /
L RECOlfOUl1 OROUID
REWIRED TO PROVIDE FINAL COVER WITHIN6' TO IY
YAKOY REQUIREMENT AS ILLUSTRATED ABOVE.
/ /
\ \
L IWALL 1' PERFORATED PLASM LINE AT NO SLOPE.
/
.1 •te : 3
33.6 JI.B
no SO!
�a I
L
FIGURE 3
0 5o ioo ff
TOWN OF EAST ARCADIA
ARCADIA VILLAGE
9,360 GPD LPP SYSTEM
BLADEN COUNTY
DEH 98-21-R/GW00156 I
SITE DETAIL MAP ,
DIVISION OF WATER QUALITY
GROUNDWATER SECTION
A
MEMORANDUM
TO: /7 r (dL2 h "GC✓GL f
r/t y'e, -; 0 a Regional Office
FROM:
SUBJECT: Application for Permit Renewal,
New Permit
COMMENTS
Permit Amendment
— Repair/Aheration of Exist Disposal System IDEHJ
Facility Name: Tgoy P ��s �C�G/G<<� �rGleGei o VI�G�Gf fG e
County: CCLCC eh
Type of Project: L ! 7,fyt eoi
APPLICABLE PERMIT NO.s: WQ GW 00 l G
DEH ./ V 2-"� A to C
EPA (CONST. GRANTS) UIC
The Groundwater Section has received ONLY ONE (1) copy of the referenced permit application. A copy of the
application should have been sent to your Regional Water Quality Supervisor, so please use that copy for
your review - IF A COPY HAS NOT BEEN RECEIVED IN THE REGIONAL OFFICE, PLEASE LET ME KNOW.
The Groundwater Section has received ONLY ONE (11 copy of the referenced permit application. A copy of the
application should have been sent to , DEH's Regional Soil Specialist, so please use
that copy for your review - IF A COPY HAS NOT BEEN RECEIVED IN THE REGIONAL OFFICE, PLEASE
LET ME KNOW.
XThe Groundwater Section received two (2) copies of the referenced permit application. One copy of the application
documents we .received is attached.
Please review the application materials for completeness. If you feel additional information is necessary, please let
me know no later than Xjcf ,ci 2 z. 2a0A A copy of any formal request for additional information will be
forwarded to you.
If you do not need any additional information to complete your review, please provide your final comments by
,42rgce.f 9' 2 OUD . If you request and/or receive additional information, y ur f nal comments are due no
later than ld days after You receive the additional information.
\P8Tl2AN.SHL (rev. 6/22/99)
i
State of North Carolina
Department of Environment
and Natural Resources
Division of Environmental Health
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Linda C. Sewall, Director NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
August 7, 2000
MEMORANDUM
TO: Ted Bush, Assistant Section Chief
Permits and Compliance Unit
Groundwater Section
Division of Water Quality
CD
FROM: Steven Berkowitz; Project Engineer
c
C
On -Site Wastewater Engineering
c�
-: r_,
On -Site Wastewater Section
Division of Environmental Health
Phone:715-3271
1,0
Fax:715-3227
v
o
SUBJECT: - Groundwater Section Review
OSWS Project No: 98-21-R
County: Bladen
;Facility Name: Town of East. Arcadia, Arcadia Village
Type of Facility: 30-unit apartment complex (existing)
Type of System: Repair Wastewater System, 3-1/2 mile force main, septic-4ank/drainfield
With LPP distribution in conventional trenches
Design Flow: 9360 gallons per day
Regional Soil Specialist: Dr. David McCloy
Located at: 130 Williams Road
Southern Pines, NC 28387
Phone: 910-6924 118
E-Mail: David.McCloy@ncmail.net
Attached you will find plans, specifications, and supporting information for the above project, for the Groundwater Section0s
review, in accordance with our Memorandum of Agreement. If we can provide any additional information, please don't hesitate
to contact us. Your assistance is greatly appreciated.
PROJECT/SPECIFIC INSTRUCTIONS/COMMENTS:
Repair project previously reviewed by David Goodrich, memo date November 9, 1998, GW Project GW98126, OSWS
Project 98-21. New site had to be found because Town could not get legal access to previously -proposed site in adjoining
Columbus County. The newly proposed site is being condemned for this project, and has improved soil characteristics,'
compared to the previous site. Please review/comment ASAP, as there is pending legal action against the Town, and fairly
tight timelines that must be met.,
Cc: Project File
ON -SITE WASTEWATER SECTION
1642 Mail Service Center, Raleigh, North Carolina 27699-1642
Telephone.919-733-2895 . FAX 919-715-3227
M ' DAVID Ass0CUT-ESJNC._
INC. Engineers • Planners 'Land Surveyors .
CORPORATE OFFICE GOLDSBORO OFFICE
(252) 753-2139 • Fax (252) 753-7220 (919) 736-7630 • Fax (919) 73577351
120 N. Main Street • P.O. Drawer 49 109 E. Walnut Street • P.O. Box 1776
Farraville, NC 27828 Goldsboro, NC 27533
June 16, 2000
L, RECEIVED.
Mr. Steven Berkowitz R
On -Site Wastewater Section ^w `
Division of Environmental Health JUN 20
1642 Mail Service Center,
DEHNR;DEH
Raleigh, -.NC 27699-1642 8 WT4ftyaiar Section
SUBJECT: Soil Evaluation Report - Carter Site*
Arcadia Village
Town of East Arcadia
Blades County, NC
.Dear Mr. Berkowitz:
Attached please find.one.copy of subject Soil Evaluation Report for. the, Carter property. Plans
are being prepared for proposed op -site wastewater disposal improvements and•will be forwarded to
you upon completion.
If you have any questions, please do not hesitate to contact me.
Sincerely,
McDAVID ASSOCIATES, INC.
F. Tyn ll Lewis, PE
-Goldsboro Office .
FTL:
Attachments
-cc:- Town of East Arcadia
Reuben Moore -
Chris Harrelson (w/attach)
\\G-PC1\D805\FTL\2000\EAVSERCS.PMT 1
EAST ARCADIA-VILLAGE-SOIL EVALTMT 000616
� 1
ti
SOIL AND SITE`EVALUATION
MOUNDING ANALYSIS REPORT
_ _East Arcadia Apartments Complex -Repair =
Highway 87(Carter) Site- East Arcadia, North Carolina
Bladen County
PREPARED FOR:
TOWN OF EAST ARCADIA, NORTH CAROLINA
- PREPARED BY:
DWAYNE A. GRAHAM, R.S., L.S.S.
N. C. LICENSED SOIL SCIENTIST # 1022
GRAHAM ENVIRONMENTAL CONSULTING, INC.
June 11, 2000
"p SOIL SC�F
Q :: •� N
Graham
Environmental
Consulting, Inc.
June.11, 2000
P.O. Box 799N
Clinton, North Carolina 28329
Phone/Fax: 910-529-6868
INTRODUCTION F -
Graham Environmental Consulting, Inc:(GECI) has performed a detailed
site/soils evaluation and mounding analysis on the proposed repair system site for the
Apartment Complex -Town of East Arcadia, NC-Bladen County. The purpose of this
evaluation and analysis was to evaluate the site's potential for use as a repair area to
serve the existing complex Design Flow for the facility is 9600 gpd. The wastewater is
expected to be of typical domestic.nature.
Site and soil parameters evaluated included soil texture, structure, horizonation,
soil wetness, consistency, soil depth, and depth to impermeable layer. Soil testing
included hydraulic conductivity's of both the unsaturated and saturated zone. Finding's
of the soils evaluation and testing were used to determine both a.recommended long-
term -acceptance rate and mounding potential.
The most current laws and rules governing subsurface wastewater systems in
North Carolina and the Procedures and Information Required for Approval of Large
Subsurface Wastewater Systems document was used as guides during the evaluation
and report preparation. The system design and engineering are being provided by Mr.
Tyndall Lewis, P.E. of McDavid Associates, Inc.
SITE AND SOILS EVALUATION
The proposed site is located off N. C. Highway 87 North in Southeastern Bladen
County. The specific location should be shown on plans submitted by Mc David
Associates, Inc.
The site is located on a linear -slope upland with surface slopes ranging from 0-2
percent The dominant soils revealed are well drained having a typical profile with a G-
60 inch thick loamy sand A, E and C horizon, with inclusions of a coarse sandy loam,
typically less than 6 inches thick, at 40 to 46 ,inches -where encountered. The deep C
horizon was a coarse to medium sand to depths of 18 feet. Deep borings were ceased
at 18 feet and no confining layer was encountered.
SOIL / SITE EVALUATIONS • WETLAND DELINEATION S MITIGATION • SOIL HYDRAULIC TESTING S DRAINAGE
ANIMAL / DOMESTIC WASTEWATER SYSTEMS EVALUATIONS' SUBDIVISION EVALUATION & PLANNING
GROUNDWATER MOUNDING ANALYSIS' GPS MAPPING' SEPTIC SYSTEM DESIGN S PERMIT ACQUISITION
Graham Environmental Consulting, Inc. .
East Arcadia Apartment Complex Repair -Mounding Analysis Report -Carter Site
Town of East Arcadia, North Carolina
Page Three of Six
June 11, 2000
The location of each test is referenced by CCHP # below. The location of each
test is show_ n on the Site Map -Soil Boring and Testing Locations Map, Figure 1, Page 1,
-Appendix Data sheets for each testis- in on pages 5-7 of the appendix The
following are the results of those measurements.
_ COMPACT-CONSTANT-HEAD-PERMEAMETER _
GLOVER SOLUTION
Test# Depth(cm) Rate(cm/hr)
CCHP 1-6 90-120 *(C)
CCHP 7 122 3.16(Bt)
CCHP 8 137 5.06(Bt)
* Could Not Maintain Constant Head
Conductivity measurements were taken in the lower A/E, Bt, and deeper C
horizons above static water. The individual readings reveal conductivity's which would
be considered within the expected range for the sandy materials encountered across
the site.
Water levels during our study were typically from 7 to 8 feet below ground
surface. The range of long -term -acceptance rates were previously mentioned. Using
the lowest rate of the Bt inclusion(sandy loam Bt), 3.06 cm/hr, we calculate an
equivalent rate of 37.30 gpd/sf . This rate is equivalent to 2.70% of Ksat. Therefore,
the proposed 1.0 gpd/sf loading would not hydraulically overload this sites upper soils
material.
-HYDRAULIC CONDUCTIVITY OF THE SATURATED ZONE -
The thickness and conductivity of the saturated zone must be known to
calculate its transmissivity. The transmissivity is the product of it's thickness and the
conductivity in units of length squared per unit time such as square feet per day.
Measurements of saturated hydraulic conductivity of saturated material can be
accomplished by several methods._ The method chosen for this site was the Slug Test
Method. This method was conducted in. accordance with procedures in Applied
Hydrology, 3rd Edition, Chapter 7, 7.5.1-7.5.3.
Graham Environmental Consulting, Inc:
East Arcadia -Apartment Complex Repair- Mounding -Analysis Report -Carter Site
Town of EastAicadia;-North Carolina
Page Four of Six
June 11;*2000`-
- Measurement of the saturated zones conductivity was performed at 3 locations.
The test were performed at DB 1-3. _Pages 8-14 contain the graph's_and data for each -
- tests. .Each- graph is followed-by.the corresponding -data set
s.= The order of the graphs- -
would slug tests 1-3. In review of the data, it is apparent that even withsome variability
of the'data that the majority of the numbers indicated rapid permeability within this _
layer. Based -on the results we calculated an average of the values at 29.60 ft/day K-
sat: - These"values-also compare to the 6 cchp's which would -exceed 1045 inches per
hour with a no head condition from cchp testing.
Having collected K-sat data from all layers and having field topo data, we had
sufficient data to perform our modeling approach. We used the Colorado State Model
to predict the rise above the estimated soil wetness condition over the site. The
following sections of this report describes our approach, inputs and program outputs.
MOUNDING ANALYSIS
Colorado State Model
Simulation 1- Wastewater Applicati6n(9360 GPD)
The computer model Colorado State Recharge was used to simulate the
mounding expected. Soil boring data presented earlier in this report revealed an
average depth to soil wetness of greater than 60 inches or using 60 inches, we would
have` a saturated zone of 5 to 18 feet minimum or 13 feet. Therefore, the. transmissivity
would equal 29.60 ft/day times 13 feet or 390.00 sf/d.
Using -a flow of 9600 gpd at an Itar of 1.0 gpd/sf with conventional lines, we set
our basin width at 158 feet and our length at 200 feet. This simulation was based on
16-200 foot lines or 9600_sf of trench bottom area or 1.0 gpd/sf-at 9600 gpd..
Page 15, of the appendix, presents the input data for the addition of 9600 gpd
over this basin area. Page 16 indicates the output or mound height predicted with
Page 17 presenting a,graphical representation of the mound: The predicted rise of
water would equal 1.626 feet at the center of the field at 360 days. ,Therefore, based
on this output, it appears that the mound development under this field would allow for
installation of conventional fields at shallow depths.
MOUNDING=ANAL EPAIR SYSTEM ---
o
,
too
,�4
�0
Woodsland
,
SRO SOIL SC� _•_. � `_.;_`i_ �0�::: __ �_ -. - _ - - - - - - - : - . - -.
-JIAE A. G'Q9 F��i1'�►
.00 feet
r±:
:1200
1022 - y.
NORTH =
mental Consulting,. Inc.
'arolina 28329
_- -6868
--Graham Environmental Consulting, Inc. —
Soil Borings'Descriptions
East Arcadia Repair System--Carter--.Hwy 87 Site
:.. t Page'2, Appendix
Soil Morphology
Profile#
Landscape
orizon
Bottom
De th in
Texture
Structure
Mineralogy
Consistence
Soil Matrix
Color
Soil Mottle
Color
Pos: Sloe
%
SB 1
0-2
at D61
--A
12
LS
WGR
VFR
10yr4/2
C1
44 --
LS/S
SG
VFR
10yr7/8
C2
60
S
SG
VFR
10YR7/6
shwt>60"
SB 2
0-2
at DB2
A
6
LS
GR-SG
VFR
10YR4/2
E
40
S
SG
VFR
2.5y6/4
Bt
46
CSL
WSBK
VFR
10YR6/8
C
60
IS
SG
VFR
10YR6/5
shwt>60"
SB 3
0-2
at DB3
A
6
LS
GR-SG
VFR
10YR4/2
E
48
S
SG
VFR
2.5y6/4
Bt
54
CSL
WSBK
VFR
10YR6/8
4/1 soft mass
C
65
S
SG
VFR
10YR6/5
shwt>60" .
SB 4
0-2
A
4
S
GR-SG
VFR
10YR4/3
C
48
ILS
GR
VFR
2.5y6/4
C
54
LS/S
IGR
VFR
10yr6/8
C
60
LS
GR
VFR
10yr7/1
Fe streaks
shwt>+/- 54"
SB 5
0-2
A
4
LS
GR
VFR
10yr4/2
C
48
LS/S
GR
VFR
10YR5/6
- Graham Environmental Consulting, Inc.
Soil Borings Descriptions .
East Arcadia Repair System -Carter -Hwy 87 Site
_=Page 3`Appendiz
Soil Morphology
Profile#
Landscape
onzon
Bottom
Pgpffi-(inj
Texture
Structure
Mineralogy
Consistence
Soil Matrix
Color-
Soil Mottle
Color
Pos. Sloe
%
C
54
LS -
GR
VFR
10yr8/3
-C
60.
LS/S
GR
VFR
10yr8/1,8/210yr4/3
Ishwt>+/-
54"
-
--
SB 6
0-2
I
A
4
LS
GR-SG
VFR
10YR4/2
I
E
44
S
SG
VFR
2.5y6/4
Bt
50
CSL
WSBK
VFR
10YR6/8
C
60
S
SG jVFR
10YR6/4
shwt>60"
I
SB 7
I A
4
S
GR-SG
VFR
10yr4/2
E
44
LS
GR
VFR
10yr6/4
Bt
48
CSL
GR
VFR
10yr6/8
C
55
LS
GR
VFR
7.5YR6/5
C
60
LS
GR
VFR
10yr6/4
shwt>60"
SIB s-10
0-2
-
A
4 - -
S
GR-SG -
VFR
10yr4/3
C
42
S
SG
VFR
10yr5/6
.0
60
S
SG
VFR
2.5Y6/4
shwt>60"
SB 11
0-2
A
6
LS
GR
VFR
10yr4/4
E
48
LFS/S
GR
VFR
10YR5/4
Bt
60
SUSCL
GR
VFR
10YR5/4
10yr5/2
shwt,48"
- Graham Environmental Consulting, Inc.
- _ Soil Borings Descriptions
East Arcadia Repair System -Carter -Hwy 87 Site
Page 4; Appendix :.
Soil Morphology
Profile#
Landscape
orizon
Bottom
Depth in
Texture
Structure
Mineralogy
Consistence
Soil Matrix
Color
Soil Mottle
Color
Pos. Sloe
.- % - _
SB 12 '
0-2
A
6
LS
GR
VFR
10YR3/3
E
44
S/LCS
GR
VFR
10yr5/6
Bt
48
S
GR-SG
VFR
10yr6/8
C
54
LFSNCSL
GR
VFR
10yr5/6
C
60
LCS
GR
VFR
10yr6/4
Fe streaks
shwt +/- 54"
DB 1
0-2
C1
6-8"
M-CS
SG
VFR
2.5y8/4
C2
8-10,
M-CS
SG-M
VFR
10yr7/6
C3
10-12'
M-CS
SG-M
FI/FR
10yr7/6
10yr7/2
C3
12-18'
M-CS
SG-M
FI/FR
2.5yr7/2
2.5yr5/8
STATIC AT 8.18'
DB 2
0-2
C1 -
6-8'
LFS-S. -
SG
VFR
2.5y7/4
62
10-14'
M-CS
SG-M
VFR
2.5y7/4
C3
14-18'
M-CS
SG-M
FI/FR
2.5y7/2,7/3
STATIC
AT 6.98'
DB 3
C1
.3.5-5.5'
M-CS
SG
VFR
2.5y6/5
C2
6-10'
M-CS,wsl
SG-M
VFR
10yr5/2
10yr5/6
C3
10-18'
M-CS
SG-M
FI/FR
10yr7/6
10yr6/1
STATIC AT 7.50'
GRAHAM ENVIRONMENTAL CONSULTING, INC.
SATURATED HYDRAULIC CONDUCTIVITY
COMPACT CONSTANT HEAD PERMEAMETER DATA SHEET
East Arcadia Repair-CarterMwy 87 Site
Page 5 - Appendix
Measurement No. CCHP1-6
Conducted By Dwayne Graham
Location East Arcadia Repair Carter/Hwy
87-Site
Date 617/00
Weather Condition clear
Temperature 90 -
---- Horizon -- - - - C
Source of Water --Tap - — -
Hole Depth
101 cm
Measured (Actual) water level in hole
Distance between reference
Inital na cm
level and soil surface +
11 cm
Final na cm
Distance from the hole bottom
Clock Time
to the reference level (D) =
112 cm
Start saturation
Desired water depth in hole (H) -
15 cm
Steady-state reading
Constant -head tube setting (d) =
97 cm
•
Reservoirs Used for Measurement of the Steady -State Flow Rate
Flow Measuring Reservoir Only
Conversion Factor (C.F.)=20 cm112
Both Flow Measuring and Main Reservoirs
X
Conversion Factor (C.F.)=105 cm"2
(To obtain flow volume multiply change in water level by the appropriate C.F. from above)
Change in
Change in Flow
ClockTime Reservoir time
Water Volume
Q Q Ksat
Wmin) Reading (cm) ( min)
Level (cm) (cm^3)
(cm"3/min) (cm^3/h) (cm/h)
Average of last three measurements : Ksat= cm/h (other units)
COMMENTS: K=QA(Table)
Could not maintain constant head
- GRAHAM ENVIRONMENTAL CONSULTING, INC.
" . SATURATED HYDRAULIC CONDUCTIVITY
COMPACT CONSTANT HEAD PERMEAMETER DATA SHEET
East Anima Repair Repo t-CarterMwy 87 Site
Page 6 - Appendix
Measurement No. CCHP7-SB 6 Conducted By Dwayne Graham
Location East Arcajdia Repair, Carter/Hwy 87Site Date 6f7100
Weather Condition clear Temperature 90
Horizon Bt Source of Water Tap-- -`
Hole Depth 113 cm Measured (Actual) water level in hole
Distance between reference Inital 15 cm
level and soil surface + 11 cm Final 17 cm
Distance from the hole bottom Clock Time
to the reference level (D) = 124 cm Start saturation
Desired water depth in hole (H) - 20 cm Steady-state reading
Constant -head tube setting (d) = 104 cm
Reservoirs Used for Measurement of the Steady -State Flow Rate
Flow Measuring Reservoir Only Conversion Factor (C.F.)=20 cmA2
Both Flow Measuring and Main Reservoirs X Conversion Factor (C.F.)=105 cmA2
(To obtain flow volume multiply change in water level by the appropriate C.F. from above)
Change in Change in Flow
ClockTime Reservoir time Water Volume Q Q Ksat
th•minl Raadinn leml / min 1 Level (cm) (cmA31 (cmA3/minl (cmA3/h) (cm/h)
Average of last three measurements : Ksat= 3.16 cm/h (other units)
COMMENTS: K=QA(Table),
=3600(0.000879)
3.16
0
GRAHAM -ENVIRONMENTAL CONSULTING, INC.
SATURATED HYDRAULIC CONDUCTIVITY:
COMPACT CONSTANT H-P*ERMEAMETER DATA SHEET
East Arcadia Repair Report-Carter/H" 87 Site
Page 7 - Appendix
Measurement No. CCHP8-DB 3
Conducted By Dwayne Graham
Location East Arcadia Repair, Carter/Hwy 87-Site
Date 6/7/00
Weather Condition clear
Temperature 90
Horizon -` Bt
-
Source of Water Tap
Hole Depth
137 cm
Measured (Actual) water level in hole
Distance between reference
Inital 15 cm
level and soil surface +
11 cm
Final 15 cm
Distance from the hole bottom
Clock Time
to the reference level (D) =
148 cm
Start saturation
Desired water depth in hole (H) -
20 cm.
Steady-state reading
Constant -head tube setting (d) =
128 cm
•
Reservoirs Used for Measurement of the Steady -State Flow Rate
Flow Measuring Reservoir Only X Conversion Factor (C.F.)=20 cm^2
Both Flow Measuring and Main Reservoirs Conversion Factor- (C.F.)=105 cm^2
(To obtain flow volume multiply change in water level by the appropriate C.F. from above)
Change in Change in Flow
ClockTime Reservoir time Water Volume Q Q Ksat
Wmin) Readina (cm) ( min) Level (cm) (cm^31 (cm"3/min) (cm^3/hl (cm/h)
Average of last three measurements : Ksat= 5.06 cm/h (other units)
COMMENTS: K=QA(Table)
4800(0.001056)
5.06
Graham Environmental Consulting, Inc.
EasYArcadia Repair System Report -Carter Site
Page 8-Appendix
Slug Test -at DB 1 6107100
-East Arcadia Repair System Carter Site
1.
0.1
Bouwer and Rice Graph
DB 1
Bouwer and Rice parameter C = 3.245
In(Re/Rw) = 3.417393e+000
Analysis starts at time 0. seconds
Analysis ends at time 0.5315 minutes
20 Measurements analyzed from 1 to 20
2 Points not plotted because head ratio — 0.0
These points are not included in the analysis
l
I
Hydraulic Conductivity = 31. feetiday '
Transmissivity = 240.3 ft2/day
0 5 10 15 20 25 30
Adjusted'r— (-c-ds)
Client: Town of East Arcadia, North Carolina Ho is1.8Wfestat0.seconds
Analysis by Dwayne A. Graham, RS, LSS of Graham Environmental Consulting, Inc.
- -,- A".Graham Environmenta(ConsuitingjJnc
-:
- East Arcadia Repair, System Report=Carter Site
Page. 9-Appendix -
Slug Test aiLDB 1.
_
Site Name:
East Arcadia Repair System
- - Location:
Carter Site
Test Date:
6107/00
Client
Town of East Arcadia, North Carolina
Import File:
Aleastrdblxbct
Well Label:
DB 1
Aquifer Thickness:
7.75 feet
Screen Length:
7. feet
Casing Radius:
9.375e-002 feet
• "
Effective Radius:
9.375e-002 feet
Static Water Level:
7.75 feet
Water Table to Screen Bottom:
7.75 feet
Anisotropy Ratio: "
1.
Time Adjustment
0. Seconds
Test starts with trial 0
There are 20 time and drawdown measurements
Ma)amum head is 1.893 feet
Minimum head is 0. feet
.................................................................................................................................................................................................................
Trial Time
Adjusted Time
Drawdown
Head
Head Ratio
(minutes)
(minutes)
(feet)
(feet)
1 0.
0.
5.857
1.893
1.
2 1.1 e-002
1.1 e-002
6.33
1.42
0.7501
3 3.3e-002
3.3e-002
6.95
0.8
0.4226
4 5.5e-002
5.5e-002
7.437
0.313
0.1653
5 7.7e-002
7.7e-002
7.581
0.169
8.928e-002
_ _
- 6 - - _ . _ 9.9e-002 _
9.9e-002 _
- 7.62 = _
- 0.13 :, .
- 6.867e-002 _ -
7 0.121
0.121
7.637
0.113
5.'969e-002
8 0.143
- 0.143 .
7.652
9.8e-002
5.177e-002
9 0.165
0.165
7.661
8.9e-002
4.702e-002
10 0.187
0.187
7.671
7.9e-002
4.173e-002
11 0.209
0.209
7.678
7.2e-002
3.803e-002
12 06231
0231
7;684
6.6e-002
'3.487e-002
13 " 02552
02552
7.691,
5.9e-0.02
3.117e-002
14 0.2823
0.2823
7.699
5.1 e-002
2.694e-002
15 0.3128
0.3128
7:708
4.2e-002
2.219e-002 "
16 0.3472
0.3472
7.714 :
3.6e-002
1.902e-002
17 0.3857
0.3857
7.727
2.3e-002
1.215e-002
18 0.4288
0.4288
7.736
1.4e-002
7.396e-003
19 0.4772
0:4772
7.745
5.e-003.
2.641e-003
20 0.5315
0.5315
7.75
-0.
0.
Graham Environmental Consulting; Inc.
East`Arcadia'Repair System Report -Carter Site
Slug Test -at DB 2 06/07100
East Arcadia Repair System Carter Site
Bouwer and Rice Graph
=- - - DB2 I
Bouwer and Rice parameter C = 4—n9
ln(Re/Rw) = 3.701650e+000 -
Analysis starts at time 0. seconds
Analysis ends at time 0.4288 minutes
34 Measurements analyzed from 1 to 34
1 Points not plotted because head ratio — 0.0
These points are not included in the analysis
\o
1.e-002
Hydraulic Conductivity = 25.92 feet/day
Transmissivity = 287.7 tt2/day
0 5 10 15 20 25
Adjusted Time (seconds)
Client: Town of East Arcadia, North Carolina Hois6.9281eetat0..se=x%
Analysis by Dwayne A. Graham, RS, LSS of Graham Environmental Consulting, Inc.
Graham Environmental Consulting, Inc. -
East Arcadia Repair System
Report -Carter Site
- Page 11 Appendix
= Slug Test at DB 2
Site Name:
East Arcada Repair System
Location:
Carter Site -
Test Date:
06/07/00
Client:
Town of East Arcada, North Carolina
Import File:
A:leastrdb2x.bd
Well Label:
DB 2
Aquifer Thickness:
11.1 feet
Screen Length:
10. feet
Casing Radius:
9.375e-002 feet
Radius::
9.375e-002 feet
_Effective
- - - Static Water Level'
I IIA feet
Water Table to Screen. Bottom:
11.1 feet
Anisotropy Ratio:
1.
Time Adjustment
0. Seconds
- Test starts with trial 0
- - - -
There are 34 time and drawdown measurements
Mwdmum head is 6.328 feet
Minimum head is 0. feet
Trial
Time
Adjusted Time
Drawdown
Head
Head Ratio
(minutes)
(minutes)
(feet)
(feet)
1
0.
0.
4.772
6.328
1.
2
1.1 e-002
1.1 e-002
5.708
5.392
0.8521
3
2.2e-002
2.2e-002
6.408
4.692
0.7415
4
3.3e-002
3.3e-002
6993
4.107
0.649
5
4.4e-002
4.4e-002
7.491
3.609
0.5703
6
5.5e-002
5.5e-002
7.921
3.179
0.5024
7
6.6e-002
6.6e-002
8.296
2.804
0.4431
8
7.7e-002
7.7e-002
8.61
2.49
0.3935
9
8.8e-002
8.8e-002
8.89
2.21
0.3492
10
9.9e-002
9.9e-002
9.127
1.973
0.3118
11
0.11
0.11
9.343
1.757
0.2TTT
12
0.121
0.121
9.521
1.579
0.2495
13
0.132
0.132
9.683
1.417
0.2239
14
0.143
0.143
9.832
1.268
0.2004
15
0.154
0.154
9.954
1.146
0.1811
16
0.165
0.165
10.07
1:031
0.1629
17
0.176
0.176
10.17
0.926
0.1463
18
0.187
'0. 187
10.26
0.838
0.1324
19
0.198
0.198
10.35
0.753
0.119
20
_: - 0.209 _
0.209 _:
10.42 --
.0.678 -
0.1071
21
0.22
0.22
10.49
0.613
9.687e-002
22
0.231
0.231
10.55
0.549
8.676e-002
23
0.2427
0.2427
10.61
0.486
7.68e-002
24
0.2552
0.2552
10.66
0.435
6.874e-002
25
0.2683
0.2683
.10.72
0.381
6.0216-002
26
0.2823
0.2823
10.76
0.338
5.341 e-002
27
0.2972
0.2972
10.81
0.286.
4.52e-002
28
6.3128
.0.3128
10.87
0.232
3.666e-002
29
0.3295
0.3295
10.91
0.189
2.987e-002
30
0.3472
0.3472
10.95
0.148
2.339e-002
31
0.3658
0.3658
11.
0.103
1.628e-002
32
0.3857
0.3857
11.03
6.8e-002
1.075e-002
33
0.4067
0.4067
11.06
3.6e-002
5.689e-003
34
................. ..
0.4288
.................................................
0.4288
:....... ..................................................................................
11.1
0.
.............................................
0.
Slug Test.at DB 3 06/07100 Bouwer and Rice Graph
East Arcadia Repair System -Carter Site_ . _ _ _ "_ . _ DB 3
® Bouwer and Rice parameter C = 2.674
ln(Re/Rw) = 3.351323e+000
Analysis starts at time 0. seconds
Analysis ends at time 0.6608 minutes
42 Measurements analyzed from 1 to 42
1 Points not plotted because head ratio — 0.0
These points are not included in the analysis
0.1 !
ix 49
v
1.e-002
Hydraulic Conductivity = 35.49 feet/day
Transmissiv'ity = 279.5 ft2fday
1
0 5 10 15 20. 25 30 35
Adjusted Time (sscorws)
Client: Town of East Arcadia, North Carolina Ho Is3.953Wat0.se"ds
Analysis by Dwayne A. Graham, RS, LSS of Graham Environmental Consulting, Inc.
0
Graham- Environmental Consulting; Inc:
East Arcadia Repair System Report -Carter Site
Page 13-Appendix
Slug Test at DB 3
_
Site Name:
East Arcadia Repair System
Location: - `- --
-- - - Carter Site -
Test Date:
06/07/00
Client
Town of East Arcadia, North Carolina
Import File:
C:Wy DocumehtAeastrdb1bd
Well Labet
DB 3
Aquifer Thickness:
7.876 feet
Screen Length:
5. feet
Casing Radius:
9.375e-002 feet
•
Effective Radius:
9.375e-002 feet
Static Water Level:
7.876 feet
Water Table to Screen Bottom:
7.876 feet ,
Anisotropy Ratio:
1.
Time Adjustment
0. Seconds
Test starts with trial 0
There are 42 time and drawdown measurements
Ma)amum head is 3.953 feet
Minimum head is 0. feet
.............................................................................................................................................................................................................
Trial Time
Adjusted Time
Drawdown
Head
Head Ratio
(minutes)
(minutes)
(feet)
(feet)
1 0.
0.
3.923
3.953
1.
2 1.1 e-002
1.1 e-002
4.445
3.431
0.8679
3, 2.2e-002
22e-002
4.587
3289
0.832
4 3.3e-002
3.3e-002
4.,805
3.071
0.7769
5 4.4e_-002
4.4e-002
5.134
2.742
0.6937-_
- - 6 - 5.5e-002
5.5e-002 _
5.351 .-- ..
2.525 _
_ 0.6388
7 6.6e-002
6.6e-002
5.569
2.307
0.5836
8 7.7e-002
7.7e-002
5.674
2.202
0.557
9 - 8.8e-002 -
8.8e-002
5.868
2.008
0.508
10 9.9e-002
9.9e-002
6.031
1.845
0.4667
11 0.11
0.11
6.195
1.681
0.4252
12 0.121
0.121
6.348
1.528
0.3865
13 0.132
0.132
6.498
1.378
14 0.143
0.143
6.632
1.244
0.3147
15 0.154
0.154
6.795
1.081
0.2735
16 0.165
0.165
6.922
0.954
0.2413
17 0.176
0.176
6.995
0.881
0.2229
18 0.187
0.187
7.069
0.807
0.2041 "
19 0.198
0.198
7.129'
0.747
0.189
20 - 0.209
0209
7.185
0.691
0.1748
21 0.22
0.22
7.241
0.635
'0.1606
Graham Environmental Consulting, Inc.
East Arcadia Repair System Report -Carter Site
Page 14-Appendix
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
0.231
0.231
7293
0.583
0.1475
62427
0.2427
7.336
0.54
0.1366
0.2552
0.2552
7.379
- 0.497 -
0.1257
0.2683
0.2683
7.424
0.452
0.1143
0.2823
0.2823
7.463
0.413
0.1045
0.2972
0.2972
7.504
0.372
9.411 e-002
0.3128
•0.3128
7.544
0.332
8.399e-002
0.3295
0.3295
7.581
0.295
7.463e-002
0.3472
0.3472
7.618
0.258
6.527e-002
0.3658
0.3658
7.65
0.226
5.717e-002
0.3857
0.3857
7.68
0.196
4.958e-002
0.4067
0.4067
7.708
0.168
4.25"02
0.4288
0.4288
7.738
0.138
3.491 e-002
0.4523
0.4523
7.762
0.114
2.884e-002
0.4772
0.4772
7.786
9.e-002
2.277e-002
0.5035
0.5035
7.796
8.e-002
2.024e-002
0.5315
0.5315
7.826
5.e-002
1.265e-002
0.5612
0.5612
7.844
3.2e-002
8.095e-003
0.5925
0.5925
7.857
1.9e-002
4.806e-003
0.6257
0.6257
7.867
9.e-003
2.277e-003
0.6608
0.6608
7.876
0.
0.
QPprm2-11aaaVo—ll.nd2.pla 00-12-2000
COLORADO STATE MODEL SIMULATION 1-INPUT DATAw
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
East Arcata, North Carolina-Bladen County
Page 95-Appendnc
HECHAHHE HATE--=
.04
FTIDAY
THANSMISN IU ITY _
390
SQ . FTIDAY
SPECIFIC 'MELD =
.15
BEGINNING TIME _
30
DAYS
FINAL TIME _
360,
a0Y0 .
TIME INCREMENT =
30
DAYS
TIME OF COT OFF =
360
DAY0
BEGINNING DISTANCE' =
O
FT
FINAL DISTANCE _
409
FT
DISTANCE INCREMENT =
100
FT
DEPTH =
5
FT
ti)10TH =
150
FT
LENGTH =
200
FT
ANGLE =
0
DEGREES
-:WPWc2-11M40-l%cMMd3.p4R 0e-12-20M
COLORADO STATE MODEL SIMULATION 1-OUTPUT DATA
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
East Arcadia, North Carolina-Bladen-County -
Paye 16-Appendoi
Time if Simulation
360
360
9360
360
9360
Distance From Basin Center
209
300
400
Mound Height
..626
' 1. 392
,1.032
0.823.
0.678
7PWc2-1tMstra-l%crvmdl.pls 06-12-2000
COLORADO STATE MODEL SIMULATION 9-MOUND GRAPHIC
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
East Arcadia, North Carolina-Bladen County
- Pafle 17-Appendoc
x
r
0
0
c
0
llq
I
Center of Basin
7av�2"11asVo-t bia„nda.p+. 06.12-2000
COLORADO STATE MODEL SIMULATION 24NPUT DATA
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
East Arcadia, North, Carolina-Bladen County
Page 18-Append'a
......................................
RECHARGE RATE _
... ...,...... ...... .. I ......
_ '@:Z5 F T/DA Y
TRANSM I SS IV I T Y _
390
SQ . F T/DA Y
SPECIFIC YIELD _
.15
BEGINNING TIME _
30
DAYS
FINAL TIME _
3E0
YS
DAYS
TIME INCREMENT =
30
DAYS
TIME OF CUT OFF =
3E0
DAYS
BEGINNING DISTANCE _
@
FT'
FINAL DISTANCE _
400
FT
DISTANCE INCREMENT =
100
FT
DEPTH =
5
FT
WIDTH =
15E
FT
LENGTH TH =
200
FT
ANGLE _
0
DEGREES
i�pro2-tuasVo-t�crhix+tl3.p�a 06.12-2000
COLORADO STATE MODEL SIMULATION 2-OUTPUT DATA
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
East Arcadia, North Carolina-Bladen County
Page 19 Appendbc
Time of Simulation
Z360
Z360
Z360
Z360
Z360
Distance From Basin Center
0
100
200
300
400
Mound Height
1:01
0.87
0.64
0.51
0.42
,PPrc2-11w4Wc-1%ottmnd0.pla 0E-12-2000
COLORADO STATE MODEL SIMULATION 2-MOUND GRAPHIC
MOUNDING ANALYSIS STUDY REPORT -CARTER SITE -EAST ARCADIA REPAIR SYSTEM
EastAroadia, North Carolina-Bladen County'
Page 20-Appendbc
Basin r
t,
O
.5
L
3
o .
DLEL-10
Center of Basin
T IME DISTANCE HEIGHT
(DAYS.) ��� ) (FT)4
F,
Graham Environmental Consulting, Inc.
East Arcadia Apartment Complex.Repair-Mounding Analysis Report -Carter Site
Town of East Arcadia, North Carolina
Page Two of Six
June 11, 2000
The A and E horizons were very friable with weak granular to single grained
structure.
The B horizon, where encountered, was a sandy loam with weak subangular
blocky structure. The lower C1 material was a medium to, coarse sand and was single
grained and very friable to loose.
The estimated soil wetness as per soil color was typically greater than 60
inches. The location of each boring is shown on our Site and Testing Locations Map,
Figure 1, Page 1, Appendix Soil boring descriptions are included on pages 2-4 of the
Appendix Not all soil boring's are included due the volume, however, we consider the
descriptions provided to adequately describe the site conditions.
Based on these finding's, .the site would be classified as suitable. The long-
term -acceptance rate for sandy soils would range from 1.20 to 0.80 gpd/sf(conv.).
Based on our finding's' an initial loading rate of 1.0 gpd/sf will be. used.
CONFINING LAYER DEPTH AND SATURATED THICKNESS
Deep borings were performed at DB# 1-3 for the purpose of identifying the
deeper materials and depth to confining layer. In review of the soil descriptions for
these borings, it can be seen that the saturated zone is composed of a medium to
coarse sand. Again, borings were ceased at 18 feet at each boring and no confining
layer was encountered. Therefore, we will use a bottom depth of 18 feet for mounding
and or transmissivity calculations. The saturated thickness was determined to be from
averaged seasonal high estimations to 18 feet or 13 feet thick.
HYDRAULIC CONDUCTIVITY OF THE UNSATURATED ZONE
The compact constant head permeameter was -used to measure the hydraulic
conductivity of the unsaturated zone. The Glover solution was used to calculate the
specific rates from the data collected. The method used was similar to those described'
in Methods of Soil Analysis, Part 1., Chapter 29-Hydraulic Conductivity of Saturated
Soils: Field Methods, 29-3.2.Shallow Well Pump in Method, pp. 758-763 and in the Soil,
Science Journal, Vol. 53, no. 5, Sept=Oct 1989, " A Constant-Head-Permeameter for
Measuring Saturated Hydraulic Conductivity of the Vadose Zone" and Comparison of
the Glover Solution with the Simultaneous -Equations Approach for Measuring Hydraulic
Conductivity'.
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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY DIVISION OF WATER QUALITY
GROUNDWATER SECTION
November 9, 1998
MEMORANDUM
To: Steven Berkowitz
On -Site Wastewater Section ncuBVED
Division of Environmental Health
�2 FiffETTEVILL E
From: David Goodrich ems% REG. OFFICE
Subject: Arcadia-_VillageP
Repair of 9,360 GPD Wastewater Treatment System
Bladen County
DEH 98-21/GW98126
(Steven Berkowitz: DEH SERG Review Engineer)
The Groundwater Section is in receipt of the subject application to permit the
repair of a domestic wastewater treatment system in Bladen County (see Figures 1 and
2) . The existing system serves to treat the wastewater generated by the Arcadia
Village Apartments in the town of East Arcadia, North Carolina. The construction
of the apartments and existing conventional treatment system were completed in 1983
and problems have been experienced with the treatment system due to seasonal high
water table conditions.
The proposed repairs will consist. of installing an LPP drain system which will
consist of extensive sand -lined trenches in an area where a soils investigation revealed
typical water table levels on the order of 70 to 90 inches below ground surface. The
soil coloration in this area suggested a seasonal high water table which is
approximately 34 inches below ground surface. The distribution lines will be run in
the center of trenches three feet wide and will be on nine -foot centers. The design
flowrate of the system will be 9,360 gallons per day, although the water bills have
reportedly indicated an average usage of approximately 4,650 gallons per day. The
receiving area of the sand -lined trenches will be approximately 9,300 square feet and
result in a trench application rate of approximately one gallon per day per square foot,
or 1.6 inches per day. Because the trenches are six feet apart, the application rate to
the subsoil will be approximately one-third of this figure, or 0.53 inches per day. The
Applicant's consultant utilized two groundwater simulation programs, DRAINMOD
and the Colorado State University Mounding Model, to simulate the impact of the
GROUNDWATER SECTION
P.O BOX 29578, RALEIGH, NC 27626-OS78 - 2728 CAPITAL BLVD., RALEIGH, NC, 27604
PHONE 919-733-3221 FAX 919-715-0588
AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/1 Oq POST -CONSUMER PAPER
0
drainfield on the underlying water table. Both models were run using a maximum amount of
surface application area which minimized the concentration of hydraulic loading. The model
outputs indicated that the drainfield could accommodate an application rate of 10,000 gallons per
day. The response of the water _table to drainfield operation was also simulated by the
Groundwater Section using the Colorado State University Mounding Model (CSUPAWE), and
the results were very close to those given by the consultant's model. In view of these results and
the fact that the models used a flowrate which was above the design rate of the system and more
than twice the average reported flowrate of actual water usage by the apartment complex, the
Groundwater Section believes that the system should function as intended. The new system will
reportedly include a sand filter which will improve the quality of the water which is discharged
- -- - - - _to the drainfield _distribution system.-
It is the understanding of the Groundwater Section that the applicant intends to excavate
much of the shallow (less permeable) sandy clay soils and backfill the trench areas with sand
to enhance hydraulic permeability. It is also the understanding of the Groundwater Section that
a groundwater drain will be installed on the south side of the application area. The Groundwater
Section is concerned about the quality of the ground water being intercepted by the groundwater
drain and ultimately discharged into the trihutary known as Turkeypen Branch. The Groundwater
Section recommends that water samples be collected from the groundwater drain discharge on
an annual basis and analyzed for Ammonia Nitrogen, Nitrate Nitrogen, TDS, Cl, pH, and Fecal
Coliform. The Groundwater Section understands that the Division of Environmental Health would
like to have a non potable water supply well installed- at the site for utility and maintenance
purposes. The construction of a water supply well inside of a Compliance Boundary would
constitute a violation of 15A NCAC 2L .0107 (d). The best solution to this situation may be to
allow a variance for the well's construction under the condition that the well not be used for
drinking purposes, he permanently laheled as "non potable'; and be secured against
unauthorized access.
The Groundwater Section has reviewed the subject permit application and recommends issuance
of the permit with the following conditions:
*1. The groundwater drain discharge shall be sampled every March and analyzed for the
following parameters:
Ammonia Nitrogen
TDS
pH
Nitrate Nitrogen
Cl
Fecal Coliform.
2. Any groundwater quality monitoring, as deemed necessary by the Division; shall be provided.
*This language differs from that of • the shell document.
2
*3. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is for
the disposal system individually permitted after December 31, 1983 is established at either
(1) 250 feet from the waste disposal area, or (2) 50 feet within the property boundary,
whichever is closest to the waste disposal area. For a subsurface system such as this, the
Compliance Boundary is established at the property boundary. An exceedance of
Groundwater Quality Standards at or beyond the Compliance Boundary is subject to
immediate remediation action in addition to the penalty provisions applicable under General
-._Statute 143-215. 6A a) (I). -
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the waste
disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee.
If there are any questions please let me know.
cc: Art Barnhardt
Permit Files
ARCADIAV--
*This language differs from that of the shell document.
rl
va
\�. M-3o
-
•
/
5 O Y t
� /e .
/
1
BM48
l�
�Cem East
P • ' utoArcadia
-\\\. _ i r
. :/t _ -
•
�00
\
\\
- fir.
Mt Zion 81
p o nC GO Ce
1d a =
\
1809 - \
180
- .
57 1740
SCALE IN FEET-
0 2,000 4,000
so—
'':
FIGURE 1
ARCADIA
VILLAGE
- 62
REPAIR OF WASTEWATER
TREATMENT SYSTEM
BLADEN
COUNTY
DEH
SITE
98-21/GW98126 _
LOCATION MAP
KA�(- ....
��
LINE
0.00
'Ropos
EA. 4- 45- BENDS. ;VC
422 70,
J1.2 -CE
Fu
I EA a3- SEND. pcl
SCALE
0 so looft
7..372
0 -T
6' PERFORATED CP-
UNCERGRAW W' SOCK
NSTALLED,N
NATURAL SANG
SUBSTRATA
39
/i
'uoE
SAND FILTER
jj
PROPOSED
7 'PVC SDR 21. 200 PSI FORCE MAIN-/v`^rWyVy
29.9 T
69 70
EIP
-36.6
31.0 34.7.
35.0 CEMETERY
AVT
4e
ti
"EAR,6RUS 8 REMOVE
EES 0 LF EACH SIDE 36,4
It OF DITCH Q 36.9 68 ^ rip
Elp/
37.0.. ]6.9 36
J3.S It
mV.i 0
JI —36, (F) ' PIT 13 is PIT 12 IIPIT 4
10 q
/ / \ \
PTi
� 4e / � / / / � Ss
Is
40 (g)PIT 10
38 OPIT:4 I
C
FIELD 3 I PIT 51
CART ol
AXLE PIT I
If
PIT 11
1) PIT 2 Z ;,j 4c
40- III PIT113
/ // / / L / _
PIT 9
/ //I I 1 1 /
4p 1
\f 350 It 37
WOOL
"/j, PIT FIELD 1 39 PIT 7
FIELD 2/
D A",
20 as
4111
If
PIT 17 PIT Is
4 3,5
--POSED 1
2 EA. .- 43- BENDS. "C
OLD
309POW P'7
PATH
TS. -3
"S &V,-410XYE—
CL
30.3 TOE 298"CE • 38.6 Top
.23.8 TOE
30'ELECTRIC CASEMENT
.-IOOD 5
FIGURE 2
ARCADIA VILLAGE
REPAIR OF WASTEWATER -TREATMENT SYSTEM
BLADEN COUNTY
DEH-98-21LGW98126..
SITE DETAIL MAP
�q L�
DMSION OIL EN VIlROYMENTAL MANAGEMENT
Groundwater Section
MEMORANDUM
Date:
Review Engineer
Peflnits"&-Englneel i1 U— nit -
From: r�.)�rf ; r cf?®C��✓'!' , c �1
Groundwater Section
Subject: ?� , ' z�� i1 %` GZ t1 <
Request for Additional Information
WQ'000 DI.) i �>
/ GW
County
The Groundwater Section has conducted a preliminary
review of the subject
application
and request that the following items, as indicated in the list
of additional information items
dated July 15, 1990 to be included in the request for additional information to the
applicant:
Item 1 Item 7
Item 13
Item 18
Item 2 Item 8
Item 14
Item 19
Item 3 Item 9
Item 15
Item 20
Item 4 Item 10
Item 16
Item 21
Item 5 Item 11
Item 17
Item 23
Item 6 Item 12
Other Items (See attachment)
For Item 22 fill in blanks: ,
For Items 15 and 21 lisrt- parameters: j
N' C L' "
UyJi.'✓t �� �tr, �j��' ji %Sf,> �.'��yl G�r 'L',� ,, r j �lj �� ✓l6.,�
,'✓ �] �%Llit ,."r/����r�G7�l�. < t2r�;r„1
If you have any questions, please advise.
NOTE: See Reverse For Additional Information Items.
cc: 7,P% r r . irj Regional Groundwater Supervisor
White Copy - Water Quality Section Yellow Copy - Groundwater section Pink Copy - Regional Office
ust. of Additional Information Items
Groundwater Section
July is, 1990
Item 1. A general location map, showing orientation of the facility with reference to at least two (2) geographic references (numbered roads, named sumtrs/rives,etc.).
Item 2. A site -sped& map, with topographic contour; (contour Interval should not exceed 10 feet or 25 percent of total site relic( whichever is less), showing all facility - related structures within the
property boundary and the location of all wells, springs, lakes, ponds, or other surface drainage features within 500 feet of the waste treatment/disposal dtc(s)• Wells should be Iabded as to
their primary usage (drinking water; process water, monitoring, etc.)
term 3. A soil evaluation of the application site by a coils scientist, to verify the accuracy of the SCS soils map regarding the presence or absence of a seasonally high water table or bedrock within
three vertical feet of the deepest point of sludge application, and to dete nine the cation exchange capacity of the soils.
Item 4. A soil evaluation of the disposal site by a soils scientist down to a depth of seven feet or the 'C' horizon, whichever is lei, to develop a soil map through field evaluation of soil texture, color,
the depth, thickness and type of restrictive horfzon(s), the presence or absence of a seasonal high water table or bedrock within flume vertical fiat of the deepest point of sludge application,
and cation exchange capacity.
Item 5. A soil evaluation of the disposal site conducted by a soils scientist to adequately evaluate the soils to be utilized Orr treatment and disposal down to a depth of seven feet to include field
descriptions of texture, color, structue.sn-gmcnue, the depth, thickness and type of restrictive horizons, the presence or absence and depth of evidence of any seasonal high water table and
recommendations concerning application rotes of the waste constituents The Investigation should also include field estlrates or measurements of saturated hydraulic conductivity in the
most restrictive horizon, and cation exchange capacity. Excavation of test pits may be necessary for proper evaluation of the soils at the site.)
Item B. Proposed location and construction details of a groundwater monitoring well network as specified in Rule .0205(d) of the Regulations (15 NCAC 211. 0200)
Item 7. As per the conditions of your current permit; you were required to install groundwater ronitoring wells. These wells were to be sampled and analyzed according to a schedule and for those
parameters as specified in the permit. A search of our records Indicates that. as of the date of the letter, no groundwater monitoring data have been received. Please submit all results of
groundwater sampling and analysis which have been obtained to date If no sampling and/or analyses have been conducted, you are requested to sample the wells and report the results of
the analyses as specified in the current permit
Item & Information as to the presence or absence of any wells located within 500 feet of the waste trvatment/disposal facility. Any such wells should be accurately located on the site map, and
labeled as to their primary visage (be. drinking water, monitoring, etc.).
Item 9. A hydrogeologtc description of the subsurface, to a depth of 20 feet or bedrock, whichever is less The number of borings shall be sufficient to define the following for the area underlying each
major soil type at the disposal site:
(0 significant changes in Ifthology underlying the site
(il) the vertical permeability of the unsaturated zone and the hydraulic conductivity of the saturated arm; and
pit) depth in the mean seasonal high water table (if deilable from soil morphology or from evaluation of other appliccable available data)
Item 10. A hydrogeologic description of the subsurface, to a depth of 20 feet or bedmck, whichever is less. The number of borings shall be sufficient to define the following for the area underlying each
major soil type at the disposal site:
(i) significant changes In Ethology underlying the site
(fi) the vertical permeability of the unsaturated zone and the hydraulic conductivity of the saturated zone
(ili) depth to the mean seasonal high water table (if definable from soil morphology or from evaluation of other applicable available data); and
(iv) a determination of trsnsmLsmivity and specific yield of the unconfined aquifer based on a withdrawal or recharge test
Item 11. A hydrogeologic description of the subsurface, which should include information on the vertical and horizontal event, and the lithologic character of the unconfined aquifer. The hydraulic
relationship between the unconfined aquifer and the first confined aquifer beneath the site should be determined, Including the thickness, lithologic character, and vertical permeability of
the confining bed. The information must also include a determination of the tansmistvity and specific yield of the unconfined aquifer, determined by either a withdrawal or recharge test.
Item 12. A hydrologic evaluation in the area of the proposed waste disposal facility waste disposal facility, which should include the depth to water, direction of movement and quality of groundwater
in the shallow groundwater system, as well as an evaluation of the potential impacts the proposed system may have on groundwater levels, movement and quality.
Item 13, In order to be in compliance with 15 NCAC 2H .0219 (Q. any lagoon or pond used for treatment, storage or disposal of waste shall have either a liner of natural material at least one foot in
thickness and having a hydraulic conductivity of no greater than 1 x 10 -6 centimeters per second when compacted, or a synthetic liner of sufficient thickness to exhibit 1) structural
Integrity, and 2) an effective hydraulic conductivity no greater than that of the natural material liner. Please provide a derail description of the materials used for liners.
Item 14, 15 NCAC 2H .0219 (e) specifies that waste shall of be applied or discharged onto or below the land surface when the vertical separation between the waste and the seasonal high water table
is less than ONE tU FWr if any of the area to be utilized has a separation of less than 1TUW [3) THRW, E. a demonstration must be made using predictive calculations or modeling methods,
acceptable to the Director, that such placement will not result in contravention of classified groundwater standards. Please provide information describing the depth to rran seasonal
hdgdnwater table and supportive Information for sites with depths less than Ti-IREE M IT T separation
Item IS A recent. complete chemical analysts of the typical waste to be discharged, which should include the following parameters
(lAst parameters)
Itran 16. Is the waste which is to be discharged comprised solely of domestic waste, or arm there other sources which will contribute to the wastewater? If so, please provide information as to the
type(s) of waste involved, as well as the anticipated quantity.
dtemn 17. Boring logs and well construction details for all existing monitoring wells. Such information should include ground surface elevations at each well location and static water level measure-
ments.
Item 18. Please note that in order to be in compliance with 15 NCAC 211 .0219 (d), the bottom of earthen impoundments, trvrches or other similar excavations shall be at least four feet above the
bedrock surface. If the bottom of the excavation is lees than four feet above the bedrock surface, a liner of natural or synthetic material ial having a hydraulic conductivity no greater than 1 x
10-7 centimeters per second will be required. Please provide Information confir-Ang compliance with this requirement
Item 19. The information submitted indicates that hand auger borings were advanced at the site. Please indicate the locations of these borings on a site map. In addition, you are requested to submit
complete lithologic descriptions of the boring3 along with any evidence which may indicate the presence or absence of a seasonal high water tabs
Item 20. Dcrn the soils maps which wee submitted, it is difficult in some cases to positively identify what sell types) are found on various fields. You are requested to submit revised maps which
clearly show the distribution of the various soil types on each proposed land application site.
Item 2L A characterization of groundwater quality in the vicinity of the lagoons. This characterization should be accomplished by the Installation of monitoring wells for the purpose of describing the
]h.mology in the area, and for collecting groundwater quality samples from the water table aquifer. The locations for these wells are shown on the enclosed map. the well constnedfon details
and sampling methods should be by approval of the Regional office, from which a well construction permit must be obtained
Groundwater samples shall be obtained from each monitoring well and analyced br the following pamametes
(List parameters)
The measurement of water level should be taken prior to sampling for the other pamarreters.
Dlthologc logs, well construction details and the analytical results of the sampling should be submitted to the Groundwater Section, Division of Environmental Management
Ilan 2Z In order to be in compliance with IS NCAC 2H .0219 ( I ) (5) M (_), a buffer zone of at least — feet must be maintained between the perimeter of the disposal field and any property boundary.
it Is rated five the submitted plans that portions of the proposed facility lie within_ feet of the property boundary. Please submit revised plans which demonstrate compliance with buffer
zone requirements
.01
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SCALE IN FEET
0 2,000 4,000 /0
r l J FIGURE 1
ARCADIA VILLAGE
2 REPAIR OF WASTEWATER TREATMENT SYSTEM
BLADEN COUNTY.
DEH 98-21/GW98126 _
l\ SITE LOCATION MAP p
AUG 18 2000
REG. OFFIC-