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FIGURES

1. Diagram showing types of monitoring
2. Map showing the Neponset Basin in eastern Massachusetts
3. Diagram showing criteria for segmenting stream hydrography for Tier I monitoring in the Neponset Basin
4. Maps showing perennial streams by stream order and lakes inventoried for Tier I monitoring in the Neponset River Basin
5. Diagram showing total perennial stream miles in the Neponset Basin and assessed miles by stream order and designated use from the 1994 Neponset water-resource assessment
6-8. Maps showing:
6. Locations and watershed-drainage areas of proposed sites for Tier II monitoring
7. Sites sampled for bacteria for hot-spot monitoring in the 1994 Neponset water-resource assessment and generalized land use in the basin
8. Locations and watershed-drainage areas of permitted major discharge sites within the National Pollutant Discharge Elimination System in Massachusetts for potential water-quality monitoring


TABLES

  1. Ongoing water-quality monitoring in Massachusetts by State agencies and programs
  2. Selected surface-water quality standards and criteria for determining use-support status in Massachusetts streams
  3. Discharges permitted under the National Pollutant Discharge Elimination System that were used in defining stream segments for Tier I monitoring in the Neponset Basin
  4. Summary statistics for stream miles and segments inventoried for Tier I monitoring in the Neponset Basin
  5. Physical characteristics of lakes inventoried for Tier I monitoring in the Neponset Basin
  6. Sampling parameters and frequency for an exhaustive approach to Tier I monitoring in the Neponset Basin
  7. Resource requirements for an exhaustive approach to Tier 1 monitoring in the Neponset Basin
  8. Sampling parameters and frequency for a combined probabilistic-deterministic approach to Tier I monitoring in the Neponset Basin
  9. Resource requirements for a combined probabilistic-deterministic approach to Tier 1 monitoring in the Neponset Basin
  10. Sampling sites and drainage areas for Tier II monitoring to determine loads carried by major rivers in Massachusetts
  11. Distribution of major discharge sites within the National Pollutant Discharge Elimination System among major river basins and stream orders in Massachusetts

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