RATIONALE FOR MODIFICATION AND REISSUANCE
Lawrence County Board of Supervisors
 Lawrence County Class I Rubbish Site
Lawrence County
Solid Waste Permit No. SW0390020604
Date of Application: August 9, 2021

I.	FACILITY INFORMATION

Facility Name:  	Lawrence County Class I Rubbish Site
Facility Owner:	Lawrence County Board of Supervisors 
Facility Address:	791 Ferguson Mill Road
Silver Creek, MS 39663    
Permit No.:		SW0390020604
SIC Code:		4953
Permit Writer:		Ross D. Williams, RPG.
EPD Branch:		Waste Division, Permit Branch

II.	NATURE OF BUSINESS AND CURRENT CONDITIONS

The Lawrence County Board of Supervisors (Lawrence County), currently owns and operates the Lawrence County Class I Rubbish Site at the referenced location. The site received Certificate of Coverage, R1-049, under the Statewide General Permit for Class I Rubbish Sites, on May 5, 1998, for the disposal of class I rubbish waste. The existing class I rubbish disposal area is currently permitted for 4.33 acres within a total property area of 13.06 acres.   
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III.	PROPOSED PERMITTING ACTION(S)

Lawrence County has submitted a solid waste permit application for the modification and renewal of the exiting permit. The modification would expand the existing permitted disposal area to the south and increase the available class I rubbish disposal area by 2.38 acres for a total disposal area of 6.71 acres.   The facility will be issued an individual solid waste management permit, Solid Waste Permit No. SW0390020604, and the Certificate of Coverage R1-049, will be terminated.

IV.	LOCATION AND TOTAL PROPERTY AREA

The facility is located at 791 Ferguson Mill Road near Silver Creek within Section 36, Township 8 North, Range 12 West  of Lawrence County. The proposed total disposal area consists of 6.71 acres within a total property area of 13.06 acres.  The gated entrance for the disposal facility is approximately located at Latitude: 31° 37' 15.56" North, Longitude: 90° 04' 15.16" West.

V.	SOLID WASTE MANAGEMENT PLAN AND ZONING INFORMATION

The proposed permit action is consistent with the Lawrence County Solid Waste Management Plan (Plan). On June 5, 2023, the Lawrence County Board of Supervisors adopted a resolution approving the Plan, which included the proposed 2.38 acreage addition to the Lawrence County Class I Rubbish Site. The Mississippi Commission on Environmental Quality (Commission) issued Administrative Order No. 7329 24 on June 5, 2024, which fully recognized the addition of the proposed permitted disposal acreage of 2.38 acres to the existing disposal facility.  

In addition, a letter dated August 2, 2021, from the Lawrence County Board of Supervisors confirmed that the proposed facility follows local land use and/or zoning ordinances in conformance with all applicable local laws, regulations, and ordinances.

VI.	SERVICE AREA

The Lawrence County Solid Waste Management Plan includes an approved service area for the Lawrence County Class I Rubbish Site, as approved by the Lawerence County Board of Supervisors. The approved service area includes all of Lawrence County including the municipalities of Monticello, New Hebron, and Silver Creek.

VII.	SITING CRITERIA

Under the Mississippi Nonhazardous Solid Waste Management Regulations (Regulations), an applicant seeking to locate a new or expanded solid waste facility must demonstrate compliance with a variety of siting criteria.  The applicant has demonstrated compliance with the minimum siting criteria established in the Mississippi Nonhazardous Solid Waste Management Regulations for the operation of a class I rubbish site

The proposed expansion area for the permitted class I rubbish disposal is south of and adjacent to the currently permitted disposal area. The buffer distance on the south and west sides of the proposed expansion area is 150 feet with adequate vegetative screening. The buffer distance on the north side of the currently permitted area is 200 feet.  The application requests a buffer distance setback waiver to 50 feet on the eastern rubbish site boundary. The adjacent property to the east is also owned by the Lawrence County Board of Supervisors  and the Board has approved the reduced setback and has committed to maintain man-made and/or natural vegetative screening within the eastern buffer area. No other variances to the currently approved siting criteria for the disposal area are proposed. 

VIII.	GEOLOGICAL INFORMATION

A geologic investigation is required for permitted class I rubbish disposal sites. Geologic information for the proposed expansion area was interpolated from five soil borings that were completed for this area. These soil borings were drilled to various depths ranging from 30 to 45 feet below surface grade. Undifferentiated Neogene clastics, typically considered to be of the Hattiesburg-Pascagoula Formation realm, consisting of clays and silty clays, were encountered from the surface at all soil boring locations to depths that varied from 14 feet to 44 feet below surface grade and will serve as both a natural clay liner and buffer immediately beneath the waste mass.  The proposed top of the natural liner will be located at an elevation of 240 feet above mean sea level (msl).  Hydraulic permeabilities of these clays and silty clays were determined in the laboratory to range from1.8 to 7.00 x 10ˉ⁸ centimeters per second (cm/s).

IX.	HOURS OF OPERATION AND SITE SECURITY

The Lawrence County Class I Rubbish Site hours of operation are Tuesday through Friday, 8am to 5 pm, and Saturdays, 8 am to noon.  The facility is closed on Sundays and Mondays.

Site security at the Lawrence County Class I Rubbish Site is provided by thick natural vegetation on the north, west, and south property boundaries and a gated entrance and fence along the eastern property boundary.  Traffic is restricted through the gated entrance.  The gate is locked when the site is not attended.

X.	WASTE ACCEPTANCE

The Lawrence County Class I Rubbish Site will continue to accept and dispose of authorized, nonhazardous class I rubbish waste as defined by the regulations. The applicant estimates an average incoming waste tonnage of approximately 4 tons per day.

XI.	WASTE COVER SCHEDULE

At least once every two weeks, generally occurring on the first and third Thursday of every month, a minimum of six inches of earthen cover shall be applied.  The frequency at which earthen cover may be applied may increase depending on current site conditions. 

XII.	FINAL HEIGHT 

Upon closure, a final cover system must be constructed in accordance with State Regulations and the approved closure plan. An updated closure plan describing the final cover system must be submitted and approved by MDEQ prior to beginning final closure activities. The final cover system will be developed with an 18” infiltration layer (low permeability soils) and a 6” erosion layer (earthen material to sustain vegetative growth). The final cover system will be developed with no more than 25% side slopes and a top cap with a minimum of 4% slopes. The final height (including 2 feet of earthen cover) of the disposal area shall not exceed 266 feet mean sea level.  A slope stability demonstration is not required for this facility since the final height does not exceed 25 feet above natural grade.

XIII.	APPLICANT DISCLOSURE STATEMENT

A disclosure statement is not required for governmental entities that own permitted solid waste disposal sites.

XIV.	FACILITY CONTACT INFORMATION

Keith Martin
PO Box 1160
Monticello, MS 39654
Tele: 601-587-3003

XV.	OPERATOR CERTIFICATION

Keith Martin, RSO-236, exp. 2/28/2026.

XVI.	OTHER ENVIRONMENTAL ISSUES

A Notice of Intent for a Certificate of Coverage, for Baseline Coverage, MSR0020908, was received and currently under review for this site.  The Certificate of Coverage, R1-049, for Solid Waste General Permit SWGP-R1 for this facility, will be terminated provided an individual permit is issued for this site.