NYSDEC IMPAIRED WATERS
In 2021, New York assessed Cannonsville Reservoir as impaired after a 7-foot culvert blocked fish passage. 2 years later, the new culvert scored 0.88 for aquatic passage
In 1996, New York flagged Upper Tonawanda Creek as a water-supply concern. 16 years later, NYSDEC removed it from the impaired list after farm BMPs improved water quality
In 1998, New York listed Keuka Lake as impaired after DDT contamination. 16 years later, fish-tissue data led officials to remove the lake from the impaired waters list
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