“ That the state of New Jersey and the commonwealth of Pennsylvania, through accredited representatives, shall at all reasonable times have the right to inspect the dams, reservoirs, and other works constructed by the city of New York and to inspect the diversion areas and the inflow, outflow, and diverted flow of said areas, and to inspect the meters and other apparatus installed by the city of New York, and to inspect all records pertaining to inflow, outflow, and diverted flow. ”

“ At any time the stage of the Delaware river falls below .50 c. s. m. at Port Jervis, N. Y., or Trenton, N. J., or both (.50 c. s. m. being equivalent to a flow of 1535 c. f. s. at Port Jervis and 3400 c. f. s. at Trenton) , water shall be released from one or more of the impounding reservoirs of New York City in sufficient volume to restore the flow at Port Jervis and Trenton to .50 c. s. m., provided, however, that there is not required to be released at any time water in excess of 30 per cent. of the diversion area yield, and the diversion area yield having been ascertained to be 2.2 c. s. ”

“ Any of the parties hereto, complainant, defendants, or intervener, may apply at the foot of this decree for other or further action or relief, and this court retains jurisdiction of the suit for the purpose of any order or direction or modification of this decree, or any supplemental decree that it may deem at any time to be proper in relation o th e subject matter in controversy. ”