Ga. Comp. R. & Regs. dept. 391, ch. 391-3, sub. 391-3-19, app (391-3-19) II
This Appendix describes the method that will be used by the Director to determine if a release exceeds a reportable quantity. If the Reportable Quantities Screening Method (RQSM) indicates that a release exceeds a reportable quantity, the property owner will be required to report the release in accordance with Rule 391-3-19-.05 and the site will be listed on the Hazardous Site Inventory.
Sites that exceed a threshold score for either or both of the two pathways are considered to have had a release that exceeds a reportable quantity. The threshold score for the "groundwater" pathway is 10.0 and the threshold score for the "on-site-exposure" pathway is 20.0.
GEORGIA ENVIRONMENTAL PROTECTION DIVISION
REPORTABLE QUANTITIES SCREENING METHOD
FOR
________________________________________________
(Name of Site)
________________________________________________
(City) (State)
SCORED BY: ________________________________ ON: ____________________
Threshold
GROUNDWATER PATHWAY SCORE () 10
ON-SITE PATHWAY SCORE () 20
GROUNDWATER
A. Has a release to groundwater occurred? KnownSuspectedPotential Future
(45) (10) (5)
If A=45, then go to D
B. Route Characteristics
1b. Susceptibility Rating: HigherAverageLower
(6) (3) (0)
2b. Physical State: Stable Unstable Powder, Liquid, Gas,
Solid Solid Ash Sludge
(0) (1) (2) (3)
C. Containment: Very GoodGoodFairPoor
(0) (1) (2) (3)
D. Release Characteristics
1d. Regulated Substance:
2d. Toxicity: None (0) Low (1) (2) (4) (8) (16) High
3d. Quantity: Threshold (1) (2) (3) (4) (5) (6) (7) (8) Very Large
E. Targets
1e. Exposure to groundwater release:
Known release MCL, and known human exposure MCL.........................(25)
Known release MCL, and suspected human exposure..............................(20)
Known release, no MCL exists, and known human exposure........................(18)
Known release, MCL, and known human exposure MCL.........................(15)
Known release, no MCL exists, and suspected human exposure...................(12)
Suspected release and human exposure suspected......................................(8)
Known release MCL, but no human exposure suspected.............................(4)
Known release, no MCL exists, and no human exposure suspected.................(3)
Suspected release but no human exposure suspected.................................(2)
Potential future release...........................................................................(1)
Known release less than MCL..................................................................(0)
(only one choice allowed)
2e. Distance to well or spring (miles): 1/2 1/2 to 11 to 22 to 33
(16) (9) (4) (1) (0)
THE GROUNDWATER PATHWAY SCORE (Sgw) IS CALCULATED AS FOLLOWS:
Sgw = M x (2d + 3d) x (1e + 2e) / 442.8
Where: M = A + ((1b + 2b) x C)
If A = 45 then M = 45
If 2d is unknown, then 2d=4
If 3d is unknown, then 3d=4
If 1e includes known or suspected human exposure, 2e = 16
If 1e = 0 then 2e = 1
Note: The denominator of 442.8 normalizes the groundwater score to a value between 0 and 100.
ON-SITE EXPOSURE
A. Access to site: InaccessibleLimited AccessUnlimited Access
(0) (2) (4)
B. Has there been a release: YesSuspectedNo
(25) (15) (0)
C. Containment
Very GoodPoor
Soil Releases: (0) (1) (2) (3) (4) (5)
or
Aboveground releases: (0) (1) (2) (3)
D. Release Characteristics
1d. Regulated Substance: _________________________________________
2d. Toxicity: None (0) Low (1) (2) (4) (8) (16) High
3d. Quantity: Threshold (1) (2) (3) (4) (5) (6) (7) (8) Very Large
E. Targets
1e. Distance (feet) to 300301 to 10001001 to 30003001 to 52801 mile nearest resident (8) (6) (4) (2) (1)
individual
2e. Is there an on-site sensitive environment? YesNo
(1) (0)
THE ON-SITE PATHWAY SCORE (S0) IS CALCULATED AS FOLLOWS:
S0 = A x (B + C) x (2d + 3d) X(1e + 2e)/259.2
If A or B = 0, the S0 = 0
If 2d is unknown, then 2d = 4
If 3d is unknown, then 3d = 4
Note: The denominator of 259.2 normalizes the score to a value between 0 and 100.
Ga. Comp. R. & Regs. R. dept. 391, ch. 391-3, sub. 391-3-19, app (391-3-19) II