- 80 - 



o ' i i i m 1 1 1 i i i i i m i i i i 1 1 1 1 1 1 1 i nn 1 1 1 hi i n i i in ii 1 1 1 1 n i n i i i i n 1 1 1 1 i i i i i i n in i in 1 1 i i 1 1 ii 1 1 1 

 83MAY 84MAY 85MAY 86MAY 87MAY 88MAY 89MAY 90MAY 



YEARS 



Z5 ^-^ 



d £ 

 > | 



64 



o ° 



its 

 a ° 



Q_ 



o m 1 1 1 1 hi m i i l l i i nn i i i i n i i ii 1 1 1 mi 1 1 ii i 1 1 1 1 1 1 i n i ii i i 1 1 1 i i i i h 1 1 1 i i i mi m i ii n ii i i i n i i 

 83MAY 84MAY 85MAY 86MAY 87MAY 88MAY 89 MAY 90MAY 



YEARS 



Figure 62. — Water-quality data from the Polishing Pond and Ash Lagoon 

 No. 2 for selected constituents, 1983-1990 — Continued 



