Table 4. Recommended Water-quality Objectives and Exceedances and 

 the 1984 Sampling Program, East Poplar River at the In- 

 ternational Boundary (units in milligrams per litre, 

 except as otherwise noted). 



1. March to October, long-term average of flow-weighted concentra- 

 tions should be <^ 2.5 mg/L for boron, and <_ 1 000 mg/L for TDS 

 with a maximum flow-weighted concentration not to exceed 3.5 

 mg/L for boron and 1 500 mg/L for TDS for any 3-month period 

 during this time. 



2. 5.0 (minimum April 10 to May 15), 4.0 (minimum rest of year). 



3. Natural (April 10 to May 15), less than 30°C (rest of year). 



4. 6.5 (minimum) and less than 0.5 above natural. 



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