Existing System

Existing System. In addition to the visual inspection conducted by the Environmentalist the following will apply: 1. The system must be inspected by a Certified Installer that is manufacturer’s authorized representative to verify that the Subsurface Drip Irrigation System is functioning. 2. The manufacturer’s authorized representative must furnish written verification, to the Department, that an inspection was made. Source: Miss. Code Ann. § 41-67-3. Treatmen Field Flush Filter Backwash Air Vent (Highest Dosing Pump - Filter Unit Distribution Subsurface Drip Disposal Dwelling FIGURE 15 – Subsurface Drip Irrigation System (Example Sketch Only) Source: Miss. Code Ann. § 41-67-3. TABLE 10 – SIZING: Drip Irrigation Results of the Soil and Site Evaluation Soil Textural Class Drip Factor (Lf/GPD)** (Lf) Per Bedroom* Additional Lf/Person (Over 2 Persons Per BR) Depth of Drip Line in Inches Gravel NOT SUITABLE Coarse Sand 1.0 6-18 Medium Sand 1.0 6-18 Fine Sand 1.0 6-18 Loamy Sand 1.0 6-18 Sandy Loam 1.67 6-18 Light Loam 1.67 6-18 Heavy Loam 1.67 6-18 Silt Loam 1.67 6-18 Sandy Clay Loam 1.67 6-18 Light Clay Loam 3.34 6-18 Heavy Clay Loam 3.34 6-18 Light Silty Clay Loam 3.34 6-18 Heavy Silty Clay Loam 3.34 6-18 Sandy Clay 3.34 6-18 Silty Clay 10.0 6-18 Clay 10.0 6-18 * Bedroom is equivalent to 130 GPD. ** To estimate the required disposal, multiply GPD by the Drip Factor. Ex: 500 GPD x 1.67 (Silt Loam) = 835 Lf disposal required. Source: Miss. Code Ann. § 41-67-3. TABLE 11 - SETBACK REQUIREMENTS FROM SENSITIVE WATER (Minimum Distance from the Water Edge) Soil Textural Class Slope of Less Than 8 Percent Slope of More Than 8 Percent Gravel NOT APPLICABLE Coarse Sand 100 feet 100 feet Medium Sand 100 feet 100 feet Fine Sand 100 feet 100 feet Loamy Sand 100 feet 100 feet Sandy Loam 100 feet 100 feet Light Loam 50 feet 100 feet Heavy Loam 50 feet 100 feet Silt Loam 50 feet 100 feet Sandy Clay Loam 50 feet 100 feet Light Clay Loam 50 feet 100 feet Heavy Clay Loam 50 feet 100 feet Light Silty Clay Loam 50 feet 100 feet Heavy Silty Clay 50 feet 100 feet Sandy Clay 100 feet 100 feet Silty Clay 100 feet 100 feet Clay 100 feet 100 feet Source: Miss. Code Ann. § 41-67-3. TABLE 12 – Subsurface Drip Irrigation Pump Cycles (Minimum Requirements) Pump Cycles/24 Hours Gallons Pumped/Bedroom/Cycle Additional Gallons Pumped Per Person Over 2 Per Bedroom 12.5 18.75 9.375 7.5 12.5 6.25