15 Miss. Code. R. 15-77-2-5.2.7

Current through January 14, 2025

Rule 15-15-77-2-5.2.7 - Sizing

SIZING - AGGREGATE REPLACEMENT (Expanded Polystyrene System) "Horizontal" Configuration

Results of the Soil and Site Evaluation

Soil Textural Class	Ribbon Lengths (Inches)	EPA Manual Application Rate GPD/ Ft²	Absorption Area Per Bedroom**						Additional Absorption Over 2 Person Per Bedroom**
			3-1 0H		1-12	2-12	3-12	1-14	3-10 H		1-12	2-12	3-12	1-14
			Ft ²	Lf	Lf	Lf	Lf	Lf	Ft ²	Lf	Lf	Lf	Lf	Lf
Gravel	-	-	NOT SUITABLE
Coarse Sand	-	1.2	108	30	75	37	25	36	54	15	38	19	13	18
Medium Sand	-	1.2	108	30	75	37	25	36	54	15	38	19	13	18
Fine Sand	-	0.8	163	46	114	57	38	55	81	23	57	29	19	28
Loamy Sand	-	0.8	163	46	114	57	38	55	81	23	57	29	19	28
Sandy Loam	<.5	0.6	217	60	151	75	50	72	108	30	76	38	25	36
Light Loam	<.5	0.6	217	60	151	75	50	72	108	30	76	38	25	36
Heavy Loam	.5 - 1	0.45	289	81	201	101	67	97	144	40	101	52	33	49
Silt Loam	<1	0.45	289	81	201	101	67	97	144	40	101	52	33	49
Sandy Clay Loam	1 - 2	0.45	289	81	201	101	67	97	144	40	101	52	33	49
Light Clay Loam	1 - 1.5	0.30	433	120	299	153	100	144	217	60	100	77	50	72
Heavy Clay Loam	1.5 - 2.0	0.20	650	178	449	225	150	217	325	89	225	113	75	109
Light Silty Clay Loam	1 - 1.5	0.30	433	120	299	153	100	144	217	60	100	77	50	72
Heavy Silty Clay Loam	1.5 - 2.0	0.20	650	178	449	225	150	217	325	89	225	113	75	109
Sandy Clay	>2.0	-	NOT SUITABLE
Silty Clay	>2.0	-	NOT SUITABLE
Clay	>2.0	-	NOT SUITABLE

Minimum and maximum trench widths are 24 and 36 inches, respectively.

** Bedroom is equivalent to 130 gallons per day.

15 Miss. Code. R. 15-77-2-5.2.7

Miss Code Ann. § 41-67-3

Adopted 11/9/2014

Amended 2/11/2019