Current through Register Vol. 48, No. 9, September 27, 2024
(a) When the Department receives any
information (for example, inspects the facility, receives information submitted
by the permittee as required in the permit (see section122.41), receives a
request for modification or revocation and reissuance under section124.5, or
conducts a review of the permit file), it may determine whether or not one or
more of the causes listed in paragraph (d) and (e) of this section for
modification or revocation and reissuance or both exist.
(b) If cause exists, the Department may
modify or revoke and reissue the permit accordingly, subject to the limitations
of R.61-9.124.5(c)(2)(c), and may request an updated application if necessary.
When a permit is modified, only the conditions subject to modification are
reopened. If a permit is revoked and reissued, the entire permit is reopened
and subject to revision and the permit is reissued for a new term. See
R.61-9.124.5(c)(c)(2).
(c) If cause
does not exist under this section or section122.63, the Department shall not
modify or revoke and reissue the permit. If a permit modification satisfies the
criteria in section122.63 for "minor modifications" the permit may be modified
without a draft permit or public review. Otherwise, a draft permit must be
prepared and other procedures in R.61-9.124 followed.
(d) Causes for modification. The following
are causes for modification but not revocation and reissuance of permits except
when the permittee requests or agrees.
(1)
Alterations. There are material and substantial alterations or additions to the
permitted facility or activity (including a change or changes in the
permittee's sludge use or disposal practice) which occurred after permit
issuance which justify the application of permit conditions that are different
or absent in the existing permit.
(2) Information. The Department has received
new information. Permits may be modified during their terms for this cause only
if the information was not available at the time of permit issuance (other than
revised regulations, guidance, or test methods) and would have justified the
application of different permit conditions at the time of issuance. For NPDES
general permits (section122.28) this cause includes any information indicating
that cumulative effects on the environment are unacceptable. For new source or
new discharger NPDES permits (sections122.21, 122.29), this cause shall include
any significant information derived from effluent testing required under
section122.21(k)(5)(vi)(k)(5)(vi) or section122.21(h)(4)(iii)(h)(4)(iii) after
issuance of the permit.
(3) New
regulations. The standards or regulations on which the permit was based have
been changed by promulgation of amended standards or regulations or by judicial
decision after the permit was issued. Permits may be modified during their
terms for this cause, only as follows:
(i)
For promulgation of amended standards or regulations, when:
(A) The permit condition requested to be
modified was based on a promulgated effluent limitation guideline, EPA approved
or promulgated water quality standards, or the Secondary Treatment Regulations
under R.61-9.133; and
(B) EPA has
revised, withdrawn, or modified that portion of the regulation or effluent
limitation guideline on which the permit condition was based, or has approved a
State action with regard to a water quality standard on which the permit
condition was based; and
(C) A
permittee requests modification in accordance with R.61-9.124.5 within ninety
(90) days after Federal Register notice of the action on which the request is
based.
(ii) For judicial
decisions, a court of competent jurisdiction has remanded and stayed
promulgated regulations or effluent limitation guidelines, if the remand and
stay concern that portion of the regulations or guidelines on which the permit
condition was based and a request is filed by the permittee in accordance with
R.61-9.124.5 within ninety (90) days of judicial remand.
(iii) For changes based upon modified State
certifications of NPDES permits, see R.61-9.124.55(b)(b).
(4) Compliance schedules. The Department
determines good cause exists for modification of a compliance schedule or terms
and conditions of a permit, such as an act of God, strike, flood, or materials
shortage or other events over which the permittee has little or no control and
for which there is no reasonably available remedy. However, in no case may an
NPDES compliance schedule be modified to extend beyond an applicable CWA
statutory deadline. See also section122.63(c)(c) (minor modifications) and
paragraph (d)(13) of this section (NPDES innovative technology).
(5) When the permittee has filed a request
for a variance under CWA section301(c)(c), 301(k), or 316(a) or for
"fundamentally different factors" within the time specified in
section122.21.
(6) 307(a) toxics.
When required to incorporate an applicable 307(a) toxic effluent standard or
prohibition (see section122.44(b)(b)).
(7) Reopener. When required by the "reopener"
conditions in a permit, which are established in the permit under
section122.44(c)(b) (for CWA toxic effluent limitations and standards for
sewage sludge use or disposal, see also section122.44(b)(c)) or R.61-9.
403.18(e) (Pretreatment program).
(8)
(i) Net
limits. Upon request of a permittee who qualifies for effluent limitations on a
net basis under section122.45(g)(g).
(ii) When a discharger is no longer eligible
for net limitations, as provided in
section122.45(g)(1)(ii)(g)(1)(ii).
(9) Pretreatment. As necessary under
R.61-9.403.8(e)(e)(compliance
schedule for development of pretreatment program).
(10) Failure to notify. Upon failure of an
approved State to notify, as required by section 40 CFR 402(b)(3), another
State whose waters may be affected by a discharge from the approved
State.
(11) Non-limited pollutants.
When the level of discharge of any pollutant which is not limited in the permit
exceeds the level which can be achieved by the technology-based treatment
requirements appropriate to the permittee under R.61-9.125.3(c)(c).
(12) Notification levels. To establish a
"notification level" as provided in section122.44(f)(f).
(13) Compliance schedules. To modify a
schedule of compliance to reflect the time lost during construction of an
innovative or alternative facility, in the case of a POTW which has received a
grant under section202(a)(3)(a)(3) of CWA for 100% of the costs to modify or
replace facilities constructed with a grant for innovative and alternative
wastewater technology under section202(a)(2)(a)(2). In no case shall the
compliance schedule be modified to extend beyond an applicable CWA statutory
deadline for compliance.
(14) For a
small MS4, to include an effluent limitation requiring implementation of a
minimum control measure or measures as specified in section122.34(b)(b) when:
(i) The permit does not include such
measure(s) based upon the determination that another entity was responsible for
implementation of the requirement(s); and
(ii) The other entity fails to implement
measure(s) that satisfy the requirement(s).
(15) To correct technical mistakes, such as
errors in calculation, or mistaken interpretations of law made in determining
permit conditions.
(16) When the
discharger has installed the treatment technology considered by the permit
writer in setting effluent limitations imposed under 402(a)(1) of the CWA and
has properly operated and maintained the facilities but nevertheless has been
unable to achieve those effluent limitations. In this case, the limitations in
the modified permit may reflect the level of pollutant control actually
achieved (but shall not be less stringent than required by a subsequently
promulgated effluent limitations guideline).
(17) [Reserved]
(18) Land application plans. When required by
an NPDES permit condition to incorporate a land application plan for beneficial
reuse of sewage sludge, to revise an existing land application plan, or to add
a land application plan.
(e) Causes for modification or revocation and
reissuance. The following are causes to modify or, alternatively, revoke and
reissue a permit:
(1) Cause exists for
termination under section122.64, and the Department determines that
modification or revocation and reissuance is appropriate.
(2) The Department has received notification
(as required in the permit, see section122.41(l)(3)(l)(3)) of a proposed
transfer of the permit. A permit also may be modified to reflect a transfer
after the effective date of an automatic transfer (section122.61(b)(b)) but
will not be revoked and reissued after the effective date of the transfer
except upon the request of the new permittee.
(3) There is a violation of any terms or
conditions of the permit.
(4) The
permittee has obtained a permit by misrepresentation or has failed to disclose
all relevant facts to the Department.