[EPA/OW header]
                     [Total Maximum Daily Load Program]

             1998 Section 303(d) List Fact Sheet: Massachusetts

          Status of List

               Approved by EPA 3/9/99

          Extent of List

               906 listed waters

               1450 impairments

          Type of Impairments

               23 different types

               Top 15 impairments constitute 98% of all
               impairments

           IMPAIRMENT                                          COUNT
           NOXIOUS AQUATIC PLANTS                               483
           PATHOGENS                                            291
           ORGANIC ENRICHMENT/LOW DO                            140
           NUTRIENTS                                            135
           TURBIDITY                                            106
           METALS                                               66
           PRIORITY ORGANICS                                    58
           SUSPENDED SOLIDS                                     25
           SILTATION                                            22
           FLOW ALTERATION                                      21
           UNKNOWN TOXICITY                                     20
           CAUSE UNKNOWN                                        17
           OTHER HABITAT ALTERATIONS                            13
           PH                                                   12
           UNIONIZED AMMONIA                                    11

          Size(1)

               2,245 stream/creek/river/coastal miles

               29,827 lake acres

          1. Sizes determined from reach-indexing data.
          Segment/coastal miles and lake acres counted only once
          (even though waterbodies might be listed for multiple
          impairments).

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                    This page last updated August 6, 1999