NCD980602163_19900521_Warren County PCB Landfill_SERB C_Non-Discharge Staff Report and Recommendations-OCR

• ~0: Permi ts and Engineering Unit
Water Quality Section
Date: May 21, 1990
NON-DISCHARGE STAFF REPORT AND RECOMMENDATIONS
COUNTY: Warren
PERMIT #: WQ0003520 Renewal
Review Engineer: John Seymour
PART I -GENERAL INFORMATION
1. Facility and address:
2. Date of investigation:
3. Report prepared by:
4. Person contacted & phone:
5. Directions to site:
PCB Contaminated Soil Landfill
Warren County
May 15, 1990
Randy Jones, Environmental Engineer
Bobby Lutfy, Solid Waste Section
919/733-0692
401N, right onto SR 1625, left onto SR
1604, go about 1.5 miles, take gravel road
to the right.
6. Size (land available for expansion and upgrading):
7 .
8.
9.
N/A
Topography ( location map or topographic indicating relationship to 100
year flood plain included):
Map attached.
Location of nearest dwelling:
None within 1000 feet .
Watershed stream basin information:
a.
b.
Watershed classification:
River basin and subbasin no.:
~ -.;. -
Richneck c}~,...~s C
03-03-04
c. Distance to surface water from disposal system:
About 0.5 mile to Richneck Creek.
J.
PART II -DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
l. Type of wastewater: % Domestic
100% Landfill leachate
a. Volume: 0 .80 MGD (Design capacity)
b. Types and quantities of industrial wastewater:
landfill leachate
c. Prevalent toxic constituents in wastewater:
PCB's
d. Pretreatment program (PO'l'Ws only): N/A
__ in development
should be required
__ approved
not needed
2. Production rates (industrial discharges only) in pounds per day:
3 .
4.
5.
N/A
Description of industrial process ( for industries only) and applicable
CFR Part and Subpart:
N/A
Type of treatment (specify whether proposed or existing):
Existing leachate collection system, a portable type suction pump, a sand
filter, a carbon filter, a holding pond, a portable type irrigation pump,
and an irrigation network on top of the capped landfill · areA.::'{,?-:. 0 \~ ·, ,✓-:\-\\, I\" '· \ '( . \ \ l ~~ ,-' \ •, • ,',~ '. ,.~ ... _'."'t \.• :,~J ,-r~'\:; ..,..,.,. ':',,. (';,· ·.,,-) ,., --,t:---
' ~ ; :/ '\ t, \ \ ~\ l-. )\> f .'\ Sludge handling and disposal scheme:
No sludge.
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6. Treatment plant classification ( less than 5 points; no rating [ include
rating sheet]):
Attached is a completed ratings sheet. Permits and Engineering should
complete contact person and address once application is received from
Department of Administration · and forward to Training and Certification
Unit.
7. SIC code(s): N/A
Wastewater code(s): Primary -11:.... Secondary _______ _
J.
~
PART III -OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants Funds (muni-
cipals only)?
No.
2. Special monitoring requests:
See Part IV of Staff Report.
3. Other:
PART IV -EVALUATION AND RECOMMENDATIONS
The Raleigh Regional Office (RRO) has reviewed the submitted information
and has conducted a site inspection of the existing facility. The facility
consists of a leachate collection system, a suction pump, a sand filter, a
carbon filter, a storage pond, an irrigation pump, and an irrigation area on
top of the capped (clay cap) PCB contaminated soil landfill.
In the past the Department of Crime Control and Public Safety has held
Permit No. 7634R3 for the spray irrigation facilities. The Department of
Transportation has been responsible for maintenance at the site and the Solid
Waste Section has been responsible for monitoring and analyses. The RRO has
been informed that the renewed permit should be issued to the Department of
Administration. An application and permit processing fee should be forth-
coming.
Personnel from the Solid Waste Section have been visiting the site
monthly in order to inspect the facility, check the equipment, and collect
samples for analysis ( if leachate is detected, samples analyzed monthly;
monitoring wells and surface waters twice per year). The site appears to be
reasonably well maintained as far as the individual collection, treatment, and
disposal components and the spray irrigation area. The irrigation area
(landfill cap) has a well established grass cover, al though the grass needs
cutting. Since there has never been much leachate pumped out of the landfill
and since rainwater does not seem to collect in the holding pond, the irriga-
tion system has apparently never been used.
The existing permit refers to a rainwater diversion pipe and valve in the
holding pond. According to the Solid Waste Section, this outlet is sealed.
The reissued permit should contain a condition which specifies that this
outlet remain sealed.
Condition 27 of Permit No. 7634R3 requires that certain analyses be pro-
vided for the actual irrigation site. The RRO has not received such analyses
(the RRO did receive influent, effluent, monitoring well, and surface water
analyses) and assumes that they have not been submitted. Since no irrigation
1
.•
has occurred, we suggest that the reissued permit be worded to require the
actual irrigation site analyses only after some initial irrigating has
occurred.
The RRO recommends that the subject permit be reissued for a period of
five years upon resolution of all concerns by the Permits and Engineering
Unit .
. 7
Signatur~ <>(report preparer e /41;~j
Regional Water Quality Supervisor
Date 1 (
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