NC0081744_Regional Office Historical File Pre 2018

SOC PRIORITY PROJECT: NO
To: Permits and Engineering Unit
Water Quality Section
Attention: Jackie Nowell
Date: May 25, 2001
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Gaston
NPDES Permit No.: NC0081744
MRO No.: 01-83
PART I - GENERAL INFORMATION
1. Facility and address: D.R. Hoover, Inc.
2313 Rufus Ratchford Road
Gastonia, N.C. 28056
2. Date of investigation: May 17, 2001
3. Report prepared by: Michael L. Parker, Environ. Engr. II
4. Person contacted and telephone number: Jeffrey Hollis, ATC Associates, [phone].
5. Directions to site: From the jct. of Ratchford Road (SR 2431) and New Hope Road (SR
2435) in southern Gaston Co., travel south on Ratchford Road 1.0 mile. The D. R.
Hoover Company is on the right(west) side of the road.
6. Discharge point(s), List for all discharge points: -
Latitude: 35° 10' 28"
Longitude: 81° 05' 22"
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
1
USGS Quad No.: G 14 NE
7. Site size and expansion area consistent with application: Yes. There is ample area
available for expansion, if necessary.
8. Topography (relationship to flood plain included): The site has a gentle grade (3-5%
slopes). The site is not located in a flood plain.
9. Location of nearest dwelling: Approx. 300 feet from the GW remediation system.

Page Two
10. Receiving stream or affected surface waters: U. T. To Catawba Creek
a. Classification: C
b. River Basin and Subbasin No.: Catawba 030837
c. Describe receiving stream features and pertinent downstream uses: Flow observed
in receiving stream, which is 3-5 feet wide at the point of discharge. Downstream
uses are agriculture and secondary recreation.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater: 0.072 MGD (Design Capacity)
b. What is the current permitted capacity: 0.072 MGD
c. Actual treatment capacity of current facility (current design capacity): 0.072
MGD
d. Date(s) and construction activities allowed by previous ATCs issued in the
previous two years: There have been no ATCs issued for this facility in the past
two (2) years.
e. Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of a recovery well, pump, flow meter with totalizer, and
cascade aeration.
f. Description of proposed WWT facilities: There are no proposed WWT facilities at
this time.
g. Possible toxic impacts to surface waters: Toxic impacts are not expected.
h. Pretreatment Program (POTWs only): Not Needed.
2. Residual handling and utilization/disposal scheme: There is no residuals generation.
3. Treatment plant classification: Class I (no change from previous rating).
4. SIC Code(s): 3552 Wastewater Code(s): 66 MTU Code(s): 57000
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? No public monies were used in the construction of the GW
remediation system.
2. Special monitoring or limitations (including toxicity) requests: None at this time.
3. Important SOC/JOC or Compliance Schedule dates: N/A

a
Page Three
4. Alternative analysis evaluation: All of the standard wastewater discharge alternatives
(spray irrigation, connection to regional sewer system, subsurface disposal) were
evaluated at permit issuance. Based on current site conditions, a discharge to surface
waters continues to be the most viable disposal option.
PART IV - EVALUATION AND RECOMMENDATIONS
The permittee, D. R. Hoover, Inc., requests renewal of the subject permit. There have
been no changes to the existing GW remediation system and/or the permit since the permit was
last renewed. The permit allows for the removal and treatment of GW contaminated by
trichloroethylene (TCE) and tetrachloroethylene.
Pending a final review and approval by the NPDES Unit, it is recommended that the
permit be renewed as requested.
Signature of Report Preparer Date
Water Quality Regional S erv'sor Date
h:\dsr\dsr01\hoover.dsr

.State of North CarolinaDepartment of EnvironmentA4791:11rillrli
OC)
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary NCDENR
Kerr T. Stevens, Director /
j�, NORTH
NM CAR ND A DEPAL MENT OF
!(����///rrr////( IV ENVIRONMENT AND NATURAL RESOURCES
April 12, 2001 APR 1 9 2001
Mr. .nald Hoover XY
D Hoover Inc.
2313 Rufus Ratchford Road
Gastonia,North Carolina 28056 WATER QUALITY SEC flO
Subject: NPDES Permit Renewal Application
Permit NC0081744
D . Hoover Inc.
Gaston County
Dear Mr. Hoover:
The NPDES Unit received your permit renewal application on April 6, 2001. Thank you for submitting this
package.
The permit renewal for this facility has been assigned to Jackie Nowell. This staff member will contact you
if further information is needed to complete the permit renewal. Please note that the NPDES Unit has
several vacant positions. This staff shortage has lasted for over a year and is delaying all permit renewals.
Our remaining permit writers are currently reviewing Authorizations to Construct, speculative limit requests,
major permit modifications and 201 plan updates ahead of permit renewals. This is necessary due to a
variety of factors, including mandatory deadlines in the statutes which govern our program.
If this staff shortage delays reissuance of NC0081744 the existing requirements in your permit will remain
in effect until the permit is renewed (or the Division takes other action). We appreciate your patience and
understanding while we operate with a severely depleted staff. If you have any additional questions
concerning renewal of the subject permit, please contact Jackie Nowell at(919) 733-5083, extension 512.
Sincerely,
Valery Stephens
Point Source Unit
cc: gional Office, Water Quality Section
NPDES File
1617 Mail Service Center,Raleigh,North Carolina 27699-1617 919 733-5083,extension 520 (fax)919 733-0719
VISIT US ON THE INTERNET @ http•J/h2o.enr.state.nc.us/NPDES [e-mail]

3421-M St. VerdeII Lane
cv AT c Charlotte. North Carolina
28217
vwvw.atc-enviro.como.com
704.529.3200
Fax [phone]
ASSOCIATES
OF NORTH C A R O L I N A. P.C.
April 4, 2001
Ms. Valery Stephens D (� ` J i/ ,
North Carolina Department of Environment and Natural Resources
Division of Water Quality/Point Source Branch 1 j
1617 Mail Service Center — APR - 6 2001 J
Raleigh, North Carolina 27699-1617
DENR-WATER QUALITY
Re: Renewal of NPDES Permit pflNT SOURCE BRANCH
D.R. Hoover Inc.
2313 Rufus Ratchford Road
Gastonia (Gaston County), North Carolina 28056
NPDES Permit NC0081744
Dear Ms. Stephens:
On behalf of D.R. Hoover Inc. (Hoover), ATC Associates Inc. (ATC) has prepared this request
for renewal of the referenced NPDES Permit for the Hoover facility in Gastonia(Gaston County),
North Carolina. Attached please find the completed Application Form (Short Form C-GW,
version 6-99), documentation granting ATC authority to act as an Authorized Representative of
Hoover, and an explanation of the non-generation of solids in the wastewater stream.
Per the Renewal Notice dated February 28, 2001, this request for renewal is being submitted at
least 180 days from the expiration date of the existing NPDES Permit. ATC understands that a
permit renewal fee is not required to be submitted with this application package.
Should you have any questions regarding the preparation of this renewal package or the contents
therein, please do not hesitate to contact the undersigned at(704) 529—3200.
Respectfully Submitted,
ATC Associates of North Carolina, P.C.
Jeffrey Hollis, P.G. Joseph G. Schold, P.E. •
Environmental Project Manager Charlotte Operations Manager
attachments
cc: Donald Hoover, D.R. Hoover Inc.
Benne Hutson, Smith Helms Mulliss&Moore

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NPDES PERMIT APPLICATION - SHORT FORM C-GW
To be filed by persons engaged in groundwater remediation projects
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 mail Service Center. Raleigh. NC 27699-1617
NPDES Permit NC00 3 1-3 1.1u
Please print or type
1. Applicant and facility producing discharge
A. Name T.k. -1-1.ouPc' ^(-.
B. Mailing address of applicant:
1. Street address 231 gat_CLATA C�
2. City Grj iar,, . 3. County
4. State NC, 5. Zip Code 1't�)
. __ __-Telephone-Number- (- o y ) 3S y- :(1 .. —--_. . _._ __._---.-..-_
Fax Number ( 7ny ) S Lt 7,2S3
e-mall address:
C. Location of facility:
1. Street (c;•>r& _ .L :=.
2. City 3. County
4, State 5. Zip Code
Telephone Number ( )
. Fax Number
2. Standard Industrial Classification (SIC) code(s) (if known); .
3. This application is for a: n New Permit \ Permit Renewal ❑ Permit Modification
If this application is for a permit renewal, record the permit number: NC00 I 44
4. Product(s) recovered (circle all that apply): Gasoline Diesel fuel '-Solvent
Other (describe) :cl^.1or:-nth,-,le,o tctr<,cli\orc�t
5. (a) Check here if discharge occurs all year X. , or
(b) Circle the month(s) in which discharge occurs: January February March April
May June July August September October November December
(c) Days per week discharge occurs; r /u -k
6. Volume of wastewater discharged to receiving stream(s): 1' (;)�:3 avt(«,_o) GPD*
.*Gallons per operact'ing day
7. Check here if wastewater is discharged directly to the receiving stream(s)
If not, state the specific discharge location:
Mark the path taken by the wastewater to the receiving stream(s) on the site map. If a storm sewer is the only viable
means of discharge, trace the route of the storm sewer to Its discharge point(s).
Shari Form C-GW Version 6.99

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NPDES PERMIT APPLICATION - SHORT FORM C-GW
To be filed by persons engaged in groundwater remediation projects
8. Number of separate discharge points;
NOTE: If the facility has separate discharge points (outfalls), include a schematic diagram of
wastewater flow at the facility.
9. Name of receiving water(s): c.un bkrn.L4 e.r —t G:ttu;N(,c. CFI
This application package must include the items listed below. This application will be returned if the
recuired items are tot included.
;sj A USGS topographical map (or copy of the relevant portion) which shows all outfalls
'61 A report of alternatives to surface water discharge as outlined by the Division's`Guidance for Evaluation of Wastewater Disposal
Alternatives'(required by 15A NCAC 2H.0105 (c))
A summary of the most recent analytical results containing the maximum values for each chemical detected
Applications for pew (un-permitted) discharges must also Include the items listed below. This
application will be returned if the reauired items are not included,
o An engineering proposal describing the remediation project in detail (required by 1SA NCAC 2H.0105(c))
❑ A list of any chemicals found in detectable amounts at the site,with the maximum observed concentration reported for each chemical
(the most recent sample must be collected less than one year prior to the date of this application)
❑ A summary of analytical results containing the maximum values for each chemical detected
❑ The removal efficiency of each compound detected (if known)
For fuel remedlation projects,analyses for volatile organic compounds(VOCs)should be performed. Analyses for any fuel additives likely
to be present at the site should also be performed. At minimum, analyses should be performed for the following compounds:
benzene' toluene' ethylbenzene xyfene' lead methyl tart-butylether (MTBE) dibromoethane (EDB)
1,2-dichioroethane isopropyl ether napthalene phenol
Can EPA-approved method capable of detection levels to 1 ppb should be used to detect these compounds). -
For solvents or unidentified protects, an EPA Method 624/625 analysis should be performed. The data submitted with this application '
•
should include the ten largest peaks not identified as targeted compounds and not present in the procedural blank. These peaks should be
identified and approximately quantitated (as per the same restrictions found on the NC DENR/DWQ Annual Pollutant Analysis
Monitoring(APAM)Requirement—Reporting Form A).
If metals or pesticides are suspected to be present.these compounds should be analyzed to the same detection level as presented in the
NC APAM.
I certify that I am familiar with the information contained in the application and that to the best of
my knowledge and belief such information Is true, complete, and accurate.
JET-Fla-1 --`3LLIS! I . . (icaLic Fur_ C t�,itool�P�1�1: LNViRuNMEn1TnL f R0Ji!T t-11A046-E(C
Printed name of Person Signing Title
Signature,bt Applicant Date
North Carolina General Statute 143-215.6(b)(2)provides that Any person who knowingly makes any false statement representation,or certification in
any application,record, report, plan,or other document files or required to be maintained under Article 21 or regulations of the Environmental Management
Commission implementing that Article.or wno falsifies.tampers with,or knowingly renders inaccurate any recording or monitonng device or method
required to be operated or maintained under Article 21 or regulations o1 the Environmental Management Commission implementing that Article,shail be
guilty of a misdemeanor punishable by a fine not to exceed S 10,000,or by imonsonment not to exceed six months,or by both.
(18 U S C Section 1C01 provides a punishment by a line of not more than$10.000 or imprisonment for not more than 5 years,or both, for a similar
ollense)
Shod Form C•GW
Version 6-99

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ROAD CLASSIFICATION SCALE 1 :24 000
PRIMARY HIGHWAY LIGHT-DUTY ROAD.HARD OR 0 1 MILE
HARD SURFACE NIMMINIOM IMPROVED SURFACE
SECONDARY HIGHWAY 0 7000 FEET
HARD SURFACE =CI UNIMPROVED ROAD
1 0 1 KILOMETER
Latitude; 35°10'28" Longitude; 81°05'22"
Map # G14NE Sub-basin 03-08-37 CONTOUR INTERVAL 2 'FEET
10
Stream Class C
QUAD LOCATION
Discharge Class Groundwater Remediation NC0081744
D. R. Hoover, Inc.
Receiving Stream UTT Catawba Creek
Gaston County
Permit exp. 09/30/01 Ow 0.072 MM

i x
Report of Alternatives to Surface Water Discharge
D.R. Hoover Inc.
2313 Rufus Ratchford Road
Gastonia (Gaston County), North Carolina
NPDES Permit No,,MC0081744
An Engineering Economics Alternatives Analysis was prepared for the D.R. Hoover Inc. facility
on January 15, 1993, and was filed with the original NPDES Permit Application in 1993. A copy
of the Analysis is attached, and the following updates to the listed information are noted:
• Facility Telephone Number: (704) 854—3154
• Name of Receiving Stream: Unnamed Tributary to Catawba Creek
Although the dollar figures presented in the Analysis may be outdated, the relative comparison
between methods is still valid. The conditions that led to surface water discharge being selected
as the best possible discharge alternative in 1993 are still present. ATC recommends that surface
water discharge remain the method of discharge for this wastewater stream.
I

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- ENGINEERING ECONOMICS ALTERNATIVES ANALYSIS
HOOVER MACHINE COMPANY
ROUTE 3, RATCHFORD ROAD
GASTONIA, NORTH CAROLINA
I. GENERAL INFORMATION
Facility Name: D. R. Hoover, Inc.
NPDES Permit Number: NC0081744
County: Gaston
Facility Address: Route 3, Ratchford Road
Gastonia, NC 28054
Name of Permittee: Mr. Don R. Hoover
Mailing Address: Route 3, Box 383B
Gastonia, NC 28054
Telephone Number: [phone]
Name of Receiving
Stream: Unnamed tributary of Crowders Creek
Report Preparer: Mr. Ken Pickle
N.C. P.E. Certification
Number: 18245
ERM-Southeast, Inc. 1�� ' :�',4: y•
Mailing Address:
Suite 200 •��_• ..
7300 Cannel Executive Park 3t1G g 1 1993
Charlotte, NC 28226
•
Telephone Number: [phone] CENTRAL FILES
• Date of Investigation: January 15, 1993 5-[7.95
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II. EV ATION F NMENTAL FEASIBILITY OF NON-DISCHARGE
ALTERNATIVES
A. EVALUATION OF NON-DISCHARGE ALTERNATIVES
1. Connection to a Sewerage System
a. Existing Sewerage System: According to Mr. Michael Bynum of the Gastonia
City Engineering Department (704-866-6789), the nearest existing sewer line is
over four miles from the proposed water treatment facility (straight line distance).
This sewer line is located along State Highway 274 near the county municipal
airport.
The cost to install a five mile pipeline to the nearest existing sewer line is
estimated to be S300,000. This cost is prohibitive when considering the flow rate
and composition of the water to be discharged from the proposed treatment
facility. As such, connection to an existing sewerage system is not considered a
feasible alternative.
b. Planned Sewerage System: The proposed treatment facility should be
operational within the next year, as dictated by the Special Order by Consent
issued by the North Carolina Department of Environmental Management (DEM).
Therefore, operation of the treatment facility cannot be delayed for a lengthy
period of time. Also, there are no plans to expand the sewerage system toward
the proposed treatment facility in the foreseeable future according to Mr. Michael
Bynum (reference above).
1i #
pg„
AUG 31 1993
CENTRAL FILES
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2. Subsurface Disposal System
a. Availability and Suitability of Land for a Ground Absorption System
(1) Soil Loading Rate: 0.6 in/hr (reference: Soil Survey of Gaston
County, North Carolina, 1989, Soil Conservation Service, 127 pp.). The
loading rate provided is for Cecil sandy clay loam, 2-8% slopes, which
is the native soil in the area of Mr. Hoover's property that is available for
a non-discharge disposal system (Reference Figure 1).
(2) Determine Land Size Requirements (estimated):
Permeability = 0.6 in/hr (for Cecil B2 soils)
= .00083 ft/min
= 100 min/in
Discharge Volume = 10 gpm x 1440 min/day
= 14,400 gal/day
= 1.34 ft3/min
Q = 5/sq.root(t) From Manual of Septic Tank Practice, US
PHS
= (5) - 10012
= 0.5 gal/ft2-day
Trench Bottom Required = (14,400 gpd)/(0.5 gal/ft2-day)
= 28,800 ft2
Assume 2 ft. wide trenches = 14,400 linear feet
Assume 10 ft_ spacing = 20 trenches ® 720 ft. long
Area of subsurface discharge = 200 ft x 700 ft
= 144,000 ft2
100% reserve area requirement = 144,000 ft2
Total Area Required = 288,000 ft2
6.6 acres
(3) Can Buffer Zone Requirements be met?: Yes, reference Figure 2.
•
AUG 31 1993
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CENTRAL FILES

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(4) Necessary Modifications to the Proposed Development Plan: None
ESTIMATED COST FOR SUBSURFACE DISPOSAL SYSTEM:
$75,000 TO $125,000
b. Availability of Land by Purchase or Easement: Not necessary for this site.
3. Spray Irrigation System
a. Availability and Suitability of Land for a Spray Irrigation System:
(1) Soil Loading Rate: 1/2 in/week/ft2 conservative estimate (Source:
Mike Parker, DEHNR, Mooresville). The loading rate provided is for
Cecil sandy clay loam, which is the native soil in the area of Mr.
Hoover's property that is available for a non-discharge disposal system
(Reference Figure 2).
(2) Land Size Requirement Calculations (estimated):
Estimate water volume/week at 10 gpm flow rate
= 10 gpm x 1440 min/day x 7 day/week
= 100,800 gal/week
= 13,500 ft3/week
Estimate land requirement at 1/2 in/week/ft2
_ (13,500 ft3/week)/(0.5 in/12 in)
= 324,000 ft2
= 7.4 acres
100% reserve area requirement = 7.4 acres
• 30 day storage pond with approximately 432,000 gallon capacity
would be approximately 200' x 200' x 6' deep (approximately 1.0
acres).
Total Land Requirement = 14.8 acres spray field + 1.0 acre storage
= 15.8 acres
AUG 31 1993
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(3) Are Buffer Zone Requirements Met?: Yes, reference Figure 2 for
land area available for non-discharge systems.
(4) Possible Modifications to Planned System: Not Necessary for this
site.
ESTIMATED COST FOR SPRAY IRRIGATION SYSTEM:
$75,000 - $100,000
b. Availability of Land by Purchase or Easement: Not necessary for this site.
B. FEASIBILITY OF NON-DISCHARGE ALTERNATIVES
Although the environmental feasibility of subsurface discharge and spray
irrigation has been established, none of the three non-discharge alternatives
outlined above are considered feasible for the proposed treatment facility due to
the disproportionate cost of non-discharge system installation relative to the scale
of the proposed treatment facility and the anticipated water quality of the
treatment facility effluent (Reference Table l in Attachment D). The proposed
treatment facility is designed to discharge effluent containing levels of the
chemicals of concern at or below the applicable surface water quality standard at
the discharge location. In conclusion, the non-discharge alternatives, although
environmentally feasible, are considered to be unreasonably costly. Therefore,
an evaluation of discharge to a flowing stream is warranted.
C. EVALUATION OF FEASIBILITY OF RELOCATION OF 1'HE
DISCHARGE TO A FLOWING STREAM
1. Distance to Nearest Stream With Positive Flow: The treatment facility will
be located less than 300 feet from an unnamed tributary to Crowders Creek,
which has a flow rate of 0.21 CFS (flow rate provided by Mr. Randy Kepler,
DEM, Raleigh). Reference Figure 2 for the location of the proposed discharge
point.
ESTIMATED COST TO DISCHARGE TO A FLOWING STREAM: $2,500
2. Documentation of Necessary Third Party Easements: Mr. Hoover owns
property on both sides of the tributary to Crowders Creek and would not require
any third party easements.
D. SELECT THE PREFERRED METHOD OF EFFLUENT DISCHARGE
The applicant wishes to discharge to a flowing stream.
AUG 31 1993
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VT'u•t' III. COST ESTIMATION AND COMPARISON
'14
'4 It is not necessary to complete a cost estimation and comparison and non-discharge alternatives
.,
4 ' because the applicant has chosen to discharge to a flowing stream as indicated in Section Ii D
- „
of this evaluation.
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Summary of Most Recent Analytical Results
D.R. Hoover Inc.
2313 Rufus Ratchford Road
Gastonia (Gaston County),North Carolina
NPDES Permit No. NC0081744
The following is a summary of analytical results from the NPDES discharge from the past year
(January 2000 through January 2001). Samples were collected from the system on a monthly
basis and analyzed for purgeable halocarbons by EPA Method 601.
Sample Trichloroethylene Tetrachloroethylene
Date Concentration (µg/L) Concentration (µg/L)
January 20, 2000 50 <1.0
February 24, 2000 68 <1.0
March 20, 2000 55 <1.0
April 27, 2000 62 <1.0
May 26, 2000
June 28, 2000 64 24
July 31, 2000 87 <1.0
August 11, 2000 66 4.0
September 27,2000 60 3.0
October 23, 2000 50 <1.0
November 20, 2000 61 1.6
December 29, 2000 53 1.9
January 23, 2001 65 3.3
* Sample lost by laboratory.
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The average and maximum trichloroethylene concentrations during this period were 61.75 µg/L
and 87 µg/L, respectively. The average and maximum tetrachloroethylene concentrations during
this period were 3.15 µg/L and 24 µg/L, respectively. Results were below applicable permit
limitations.

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04/03/2001 12: 27 704854353 LK nuuv.K
Ps' 0' I
DR HOOVER INC
...
2312 RUFUS RATCHFORD ROAD ♦ OASTONIA, NC 21058 ♦ USA
rhonw [phone]♦ Fax[phone] ♦ Email araa.4ma10011101_aom
APRIL 3, 2001
TO WHOM IT MAY CONCERN:
ATC ASSOCIATES HAS BEEN SELECTED BY
DR HOOVER, INC. AS ENVIRONMENTAL
CONSULTANT ACTING AS AN AUTHORIZED
REPRESENTATIVE FOR THE RENEWAL OF NPDES
PERMIT.
"THANK Y O ,
JOY ABERCROMBIE, PRESIDENT

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Wastewater Generation Explanation
D.R. Hoover Inc.
2313 Rufus Ratchford Road
Gastonia (Gaston County), North Carolina
NPDES Permit No. NC0081744
Wastewater that is discharged under NPDES Permit No. NC0081744 is generated as a result of
groundwater recovery activities associated with a groundwater treatment system installed in 1994.
This system consists of an electric submersible pump operating in a 200-foot deep monitoring
well (MW-11D) which removes water impacted with trichloroethylene and tetrachloroethylene
and discharges the water to a surface water body (an unnamed tributary to Catawba Creek, in the
Catawba River Basin).
Since the screened portion of the well is in the bedrock (and not in the overburden where fine
sediments are likely to be found), this process generates no appreciable solids. Additionally,
monthly inspections performed during system operation confirm that no solids are being
deposited to the surface water body.
10410
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