§ 3.06.00. Groundwater recharge protection.

3.06.01.

Generally.

A.

Purpose. The provisions of this section are intended to protect groundwater as follows:

1.

Restricting land uses that generate, use, or store dangerous pollutants in recharge areas;

2.

Limiting density of development; and

3.

Ensuring that any development that occurs within the recharge area shall have no adverse effect on groundwater quality.

B.

Applicability. The provisions of this section apply to all lands mapped as significant recharge areas by the Georgia Department of Natural Resources (DNR) in Hydrologic Atlas 18, 1989 edition, as amended, or as identified in the comprehensive plan.

3.06.02.

Determination of pollution susceptability. Limitations on land use activities are based on the degree to which the aquifer is susceptible, or at risk, to pollution from spills, discharges, leaks, impoundments, application of chemicals, injections, and other human activities. The Georgia DNR has prepared maps of pollution susceptibility, which categorize land in areas of high, medium, and low potential for groundwater pollution. These maps shall be the basis for determining the locations for limited land use activities set forth in subsection 3.06.03.

3.06.03.

Limitations and site design requirements for land use activities.

Table 3.06.03. Land Use Limitations and Site Design Requirements Within the Groundwater Protection Area.

Use or Activity	Development Standards
New above-ground chemical or petroleum storage tanks having a minimum volume of 660 gallons	Secondary containment for: 110 percent of the volume of such tanks, or 110 percent of the volume of the largest tank in a cluster of tanks
New agricultural waste impoundment sites	Lined if they are in the following locations: • high pollution susceptibility area • medium pollution susceptibility area and the site exceeds 15 acre-feet • low pollution susceptibility area and the site exceeds 50 acre-feet The liner shall meet the standards set forth in subsection 3.06.03.A.
New wastewater treatment basins	Impermeable liner approved by the Georgia Environmental Protection Division
Wastewater spray irrigation systems or land spreading of wastewater sludge	Compliance with the Georgia DNR criteria for slow rate land treatment and proof of receipt of a land application system permit from the Georgia Environmental Protection Division
New homes served by septic tank/drain field systems	Lots shall meet the minimum size limitations identified on Table MT-1 of the Department of Human Resources (DHR) Manual for On-Site Sewage Management Systems, or the minimum lot area for the zoning district in which the new home will be located, whichever is larger:
• Within a high pollution susceptibility area	• 150 percent of the subdivision minimum lot size
• Within a medium pollution susceptibility area	• 125 percent of the subdivision minimum lot size
• Within a low pollution susceptibility area	• 110 percent of the subdivision minimum lot size
New mobile home parks served by septic tank/drain field systems	Lots shall meet the minimum size limitations identified on Table MT-2 of the DHR Manual for On-Site Sewage Management Systems, or the minimum lot area for the zoning district in which the new home will be located, whichever is larger:
• Within a high pollution susceptibility area	• 150 percent of the subdivision minimum lot size
• Within a medium pollution susceptibility area	• 125 percent of the subdivision minimum lot size
• Within a low pollution susceptibility area	• 110 percent of the subdivision minimum lot size (Soil groupings for use with Tables DHR MT-1 and DHR MT-2 are contained in subsection 3.06.03.B.)
New facilities which handle hazardous materials, of types and in amounts regulated by the Georgia DNR	Perform operations on impermeable surfaces having spill and leak collection systems meeting the standards of the Georgia DNR

 

A.

At a minimum, the liner required for new agricultural waste impoundment sites shall be constructed of compacted clay having a thickness of one (1) foot and a vertical hydraulic conductivity of less than 5 × 10 ^-7 cm/sec or other criteria established by the U.S. Soil Conservation Service.

B.

The following soil groupings are for use with Tables DHR MT-1 and DHR MT-2.

Group 1: Well drained to excessively drained soilswith percolation rates from <5 to 10 min./in.
Ailey	Flomation	Kershaw	Paola
Americus	Foxwoth	Lakeland (Huckabee)	Troup
Blaney	Fripp	Louisburg	Valdosta
Bonneau	Fuquay (Norfolk and Tifton thick surface; Lakewood shallow)	Lucy	Wagram
Cainhoy (Galestown, Pam Beach)	Haywood	Molena	Wicksburg
Eustis
Group 2: Well drained to moderately well drained soilswith percolation rates from 10 to 30 min./in.
Allen	Etowah (Nolichucky)	Jefferson	Norfolk
Bodine	Euharlee	Johns	Orangeburg
Brevard	Eunola	Kalmia	Porters
Brookshire	Evard	Linker	Red Bay (Ruston)
Cahaba	Faceville	Lockhart	Sequatchie
Chandler	Fullerton	Louisa	Stilson
Citico	Goldsboro	Lowndes	Tifton
Clarendon	Haywood	Masada	Tusquitee
DeKalb	Irvington	Maxton	Wedowee
Edneyville	Izagora	Nella	Wickham
Group 3: Well drained to moderately drained soilswith percolation from 30 to 60 min./in. Also includes somewhat poorly drained soils with percolation rates from 5 to 30 min./in.
Albany	Dothan	Leesburg	Shack (Clarksville)
Ardilla	Durham	Locust	Shelocta
Bartha	Echaw	Lynchburg Ocilla	Shouns
Braddock	Fannin	Minvale	Suffolk
Bradson	Greenville (Magnolia)	Mountview	Tate
Capshaw	Grover	Olustee (Ona)	Tatum
Carnegie	Holston	Pattsburg	Terllico
Centenary	Hornsville	Rigdon	Tidings
Chipley	Kanapana	Rome	Varina
Decatur	Leefield	Seneca	Shabuta
Dillard
Group 4: Well drained to moderately drained soilswith percolation from 60 to 90 min./in. Also poorly drained soilswith percolation rates from 10 to 15 min./in.
Chestatee	Dyke	Hulett	Rabun
Colbert	Enders	Kolomoki	Sapelo
Cowarts	Enon	Leon	Sawyer
Cunningham	Farragut	Litz	St. Johns
Cuthbert	Georgeville	Lynn Haven	Sequoia
Davidson	Gilead	Madarin	Shabuta
Dewey (Muse)	Hayesville	Nankin	Steekee
Dogue	Herndon	Nason	Waynesboro
Duplin
Group 5: Poorly drained soils that have water tables very near the surface with percolation rates from 5 to 10 min./in.
Alapha	Pelham	Plummer	Riceboro