Section 391.302 Sludge Storage Design

Section 391

Section 391.302  Sludge

Storage Design

a)         General

Off-site interim storage of sludge has created odors,

spillage, leachate and other environmental problems.  Consequently, the Agency

discourages sludge management plans that require off-site interim sludge

storage.  Where no other feasible alternative exists, the applicant shall

consider the following criteria.

b)         Specific Criteria for Off-site Interim Storage of Liquid or

Dried Sludge

1)         Off-site interim storage of liquid or dried sludge shall not

exceed 8 months.

2)         Provide a fence to preclude livestock and warning signs

designating the nature of the facility and advising against trespassing.

3)         Reduce visibility of storage site to general public and

maximize distance between site and any habitation.

4)         Use topographic features or wind breaks to take advantage of

wind effects of dispersion and/or reducing the movement of odorants away from

the source.

5)         Use wind breaks to prevent wave action in lagoons.

6)         Reduce exposed surface area by designing the deepest practical

and acceptable storage facility.

7)         Provide mixing equipment to maximize ease of removal of liquid

sludge from the storage facility and provide a homogeneous mixture.  Such

equipment should not generate aerosols.

8)         Only sludge that is stabilized so that odor production will not

occur may be placed in off-site interim storage facilities.

9)         In the event unexpected odor conditions do occur, the

responsible party managing the off-site storage facilities shall be prepared to

install and/or operate acceptable emergency odor control measures.

10)         Off-site interim storage facilities shall not be located

proximate to potable water supplies and other facilities subject to

contamination. Facilities should not be located in areas of porous soils and

fissured rock formations

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responsible party managing the off-site storage facilities shall be prepared to

install and/or operate acceptable emergency odor control measures.

10)         Off-site interim storage facilities shall not be located

proximate to potable water supplies and other facilities subject to

contamination. Facilities should not be located in areas of porous soils and

fissured rock formations.  If such location is necessary the facility shall be

designed and constructed to protect groundwater and groundwater monitoring in

accordance with Section 391.440 shall be provided.