# 35 Ill. Adm. Code 391.303: Section 391.303 Off-Site Interim Storage of Liquid Anaerobic Sludge

> Illinois · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_303

## Section

- **Citation:** 35 Ill. Adm. Code 391.303
- **Heading:** Section 391.303 Off-Site Interim Storage of Liquid Anaerobic Sludge
- **Jurisdiction:** Illinois
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Illinois Administrative Code / Title 35 ENVIRONMENTAL PROTECTION / CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY / Part 391 DESIGN CRITERIA FOR SLUDGE APPLICATION ON LAND / Section 391.303 Off-Site Interim Storage of Liquid Anaerobic Sludge

## Text

Section 391
Section 391.303  Off-Site
Interim Storage of Liquid Anaerobic Sludge
The Agency will not issue a
permit for the off-site interim open storage of liquid anaerobic sludge unless
the applicant submits proof that the storage facility will not cause or
threaten to allow air or water pollution.  In addition to the general criteria
under Section 391.302(b), the following items shall be addressed by the
applicant in the design of closed storage facilities.
a)         Closed storage facilities shall have an air breather vent
pipe(s) capped to preclude the entrance of precipitation.  Minimum height from
top of vent to ground level shall be 10 feet.
b)         Appropriate signs shall be posted in the immediate vicinity of
the storage facility, which as a minimum must state, "Danger – No
Smoking."
c)         Closed storage facilities shall incorporate into the vent
system adsorptive devices to minimize emissions of odorants.
d)         An alarm system shall be installed in the storage container
vapor space to actuate should an explosive situation be produced in the storage
facility.
e)         Electrical equipment in, on or in the immediate vicinity of
the closed storage facility shall comply with the National Electric Code
requirements adopted by the National Fire Protection Association, 1981 for
Class 1, Group D, Division 1 locations.  Any forced air ventilation equipment
shall be fabricated from nonsparking material.
f)         Operating personnel access shall be provided for all closed
liquid storage facilities.  Self-contained oxygen-supplying equipment shall be
available for use upon entrance into such facilities.
g)         Closed liquid storage facilities must be constructed with
relatively impermeable materials such as clay, concrete, synthetic liner or
equivalent.

## Nearby sections

- [35 Ill. Adm. Code 391.301 Section 391.301  Sludge Transport Design](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_301.md)
- [35 Ill. Adm. Code 391.302 Section 391.302  Sludge Storage Design](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_302.md)
- [35 Ill. Adm. Code 391.303 Section 391.303  Off-Site Interim Storage of Liquid Anaerobic Sludge](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_303.md)
- [35 Ill. Adm. Code 391.304 Section 391.304  Off-Site Interim Storage of Liquid Aerobic Sludge](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_304.md)
- [35 Ill. Adm. Code 391.305 Section 391.305  Off-Site Interim Storage of Dried Sludge](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_305.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_303. Check the current official text before relying on it. Not legal advice.