Table 2.1 Distribution of Months of July, August, September, and October, Based 

 on August River-Flow level, Ashuelot River, at Hinsdale, New Hampshire, 

 1934-69. 



Flow levels 



Low flow or less 



Low flow to median flow 



Median flow to high flow 



High flow or more 



Total 



Month 



July August September October 



Total 



5 



61 



60 



18 



144 



Low flow = 1 173.7 million gallons per month (August Pjo) 

 Median flow = 2850.5 million gallons per month (August Psq) 

 High flow = 8610.0 million gallons per month (August P90) 



2.3 Model Sectors 



The seven sectors included rural domestic, private water-based recreation, 

 public water-based recreation, agriculture and forest production, intensive re- 

 sidential areas, urban sector, and an industrial sector. The rural domestic sector 

 represented rural residences in sparsely settled areas where five or more acres 

 per house lot were available. Water use and waste-water disposal were private 

 wells and septic tanks, or dumping into waterways. 



The private water-based recreation sector included activities of recreation 

 cottages located on the lake and in tiers back from the lake. The alternative was 

 provided to cottages to have or not to have a motorboat. In addition, private 

 water-based campgrounds and day-use park facilities offered by private firms 

 were included in this sector. 



The public water-based recreation sector was similar to the private-based 

 recreation sector. This sector was distinguished by the assumption of public 

 ownership of facilities and the exclusion of vacation cottages. 



The agricultural and forestry sector represented primary use of land, with 

 specific ties to river flow and river-water quality. For agriculture, quahty of 

 water runoff under three dairy farm practices was included in the model. For 

 forestry, entries involved increased water runoff due to recent cutting, based 

 on timber harvest for the previous two years. Additional flows from the forestry 

 sector from cutting involved not only increases in water flow but changes in 

 water quahty. 



The intensive residential sector assumed town-type housing with central 

 water supply and with or without community-wide sewerage facilities. Alter- 

 natives for securing water included river, ground, and reservoir water through a 

 public system. Waste-water disposal occurred through central processing facil- 

 ities, individual septic tanks, or dumping waste water directly into the river. 



In the urban sector, Keene was considered one unit and included manu- 

 facturing, commercial, and residential activities. Industrial demand for water 



11 



