Minn. R. Part 7049.0980

Current through Register Vol. 48, No. 51, June 17, 2024
Part 7049.0980 - SUBSTANTIAL MODIFICATIONS DEFINED

Substantial modifications include:

A. modifications that relax POTW legal authorities, as described in part 7049.0820, except for modifications that directly reflect a revision to this chapter and are reported pursuant to part 7049.1000;
B. modifications that relax local limits, except for the modifications to local limits for pH and reallocations of the maximum allowable industrial loading of a pollutant that do not increase the total industrial loadings for the pollutant, which are reported pursuant to part 7049.1000. "Maximum allowable industrial loading" means the total mass of a pollutant that all industrial users of a POTW, or a subgroup of industrial users identified by the POTW authority, may discharge pursuant to limits developed under part 7049.0850;
C. changes to the POTW's control mechanism, as described in part 7049.0890;
D. a decrease in the frequency of self-monitoring or reporting required of industrial users;
E. a decrease in the frequency of industrial user inspections or sampling by the POTW;
F. changes to the POTW's confidentiality procedures; and
G. other modifications designated as substantial modifications by the agency on the basis that the modification could:
(1) have a significant impact on the operation of the POTW's pretreatment program;
(2) result in an increase in pollutant loadings at the POTW; or
(3) result in less stringent requirements being imposed on industrial users of the POTW.

Minn. R. Part 7049.0980

33 SR 696

Statutory Authority: MS s 115.03