(a) Staffing of the sewage treatment plant shall be commensurate with its operation and maintenance needs as determined by the commissioner.

(b) The sewage treatment plant shall be provided with services of a laboratory, certified by the State, to perform laboratory tests and physical measurements as required by the commissioner.

(c) The sewage treatment plant shall be operated in accordance with the valid State Pollutant Discharge Elimination System permit issued to the municipality by the commissioner.

(d) The sewage treatment plant shall be so operated and maintained as to produce, within practical limitations, the degree of treatment which the process is designed to produce under conditions of design flow and loading.

(e) A municipality operating a sewage treatment plant producing an effluent that will not meet stream standards established for the receiving waters because of inadequacy of existing facilities will not be denied State assistance provided the existing facilities are properly and satisfactorily operated in the judgment of the commissioner and provided that such municipality has agreed in a consent order or other binding agreement to a definite time schedule of improvements satisfactory to the commissioner. Failure to meet such schedule shall be cause for subsequent disapproval of State aid under this program.