(a) No person may construct or use any sludge
storage facility without obtaining department approval. All facilities shall be
designed and operated in accordance with the appropriate requirements in ch. NR
110 and this chapter.
municipal mechanical treatment plants shall have the ability to store sludge
for 180 days. Storage shall be available by October 1, 1998 for facilities with
a design flow of 1 million gallons per day or greater and by October 1, 2000
for facilities with a design flow of less than 1 million gallons per day. This
storage requirement only applies to facilities which recycle sludge through
land application or site reclamation projects. Wastewater treatment lagoons are
also exempt from this requirement. An agreement with an approved municipal
solid waste landfill, an incinerator, another permittee or other approved
facility during winter months may be construed as acceptable storage, although
a minimum of 15 days storage capacity shall be provided for emergency
situations. Written documentation of an agreement shall be submitted to the
department as evidence of compliance with this requirement. If a permittee does
not currently have adequate storage, the permittee shall develop with the
department a compliance schedule to obtain adequate sludge storage.
OTHER STORAGE FACILITIES. The
department may determine leasing to be an acceptable alternative to
construction if the lease is for a minimum of 5 years with an option for
another 5 years when the WPDES permit is reissued. If leasing is a temporary
solution while a permittee is constructing long-term storage or developing an
alternative long-term solution, the contract may be for less than 5 years.
Sludge may be stored individually or in combination with other waste at sites
such as, but not limited to, manure storage facilities and septage storage
lagoons following the review and approval of the design and acceptance by the
department of an operations report that shall demonstrate compliance with this
chapter. This report shall contain at the minimum:
(a) The location of the storage
(b) The type and volume
of the storage facility, including construction details to demonstrate the
integrity of the system and compliance with ch. NR 110.
(c) Sufficient site characteristics
information to evaluate the environmental impact and suitability of the sludge
(d) The name and
address of the owners of the storage facility.
(e) Any contractual agreements the permittee
enters into with another party.
Sampling and analysis results of the combined wastes for nutrients and any
other applicable parameters which demonstrate compliance with this chapter.
Testing shall be conducted in accordance with requirements in the WPDES permit
and this chapter.
(g) The methods
to be used for land application of the sludge or sludge mixture.
(h) A list of the sites or fields where the
stored sludge will be recycled, unless the sludge produced in the mixture meets
the exceptional quality sludge criteria.
EXTENDED STORAGE. If a person stores or
treats a batch of sludge for longer than 2 years, the person shall retain the
following information during the storage period:
(a) The name and address of all generators of
(b) The name and
address of the person who owns the storage or treatment facility.
(c) The location or address of the
(d) A brief explanation
of why the sludge needs to remain in storage or treatment for longer than 2
years before it is land applied or disposed of.
(e) The approximate time period when the
sludge will be land applied or disposed of.