Compilation of Rules and Regulations of the State of Georgia › Department 391 - RULES OF GEORGIA DEPARTMENT OF NATURAL RESOURCES › Chapter 391-3 - ENVIRONMENTAL PROTECTION › Subject 391-3-19 - HAZARDOUS SITE RESPONSE › Appendix (391-3-19) II - REPORTABLE QUANTITIES SCREENING METHOD

Current through Rules and Regulations filed
				through June 27, 2024
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?
Known
Suspected
Potential Future
(45) (10) (5)
If A=45, then go to D
B. Route Characteristics
1b. Susceptibility Rating:
Higher
Average
Lower
(6) (3) (0)
2b. Physical State: Stable Unstable Powder, Liquid,
				  Gas,
Solid
Solid
Ash
Sludge
(0) (1) (2) (3)
C. Containment:
Very Good
Good
Fair
Poor
(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 1
1 to 2
2 to 3
3
(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:
Inaccessible
Limited Access
Unlimited
				  Access
(0) (2) (4)
B. Has there been a release:
Yes
Suspected
No
(25) (15) (0)
C. Containment
Very Good
Poor
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
300
301 to 1000
1001 to 3000
3001 to 5280
1 mile
nearest
				  resident (8) (6) (4) (2) (1)
individual
2e. Is there an on-site sensitive environment?
Yes
No
(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.