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Tailings Pond No. 4 Area - Plate No. 3 <br /> The outslopes were planted with the "Mountain Mix" seed mixture <br /> (seed mixture analysis included in Appendix) specified in the <br /> permit for borrow areas . Prior to seeding, the area was treated <br /> with 0 . 9 tons per acre of limestone and after seeding the area <br /> was fertilized with liquid fertilizer 20-20-40 lbs/acre . The= <br /> seed rate was approximately 22 ] bs/acre applied along with a <br /> mixture of gaper mulch at a rate of 2000 lbs/acre and 40 lbs/acre <br /> of tackifier by a hvdroseeder . Results on two-tnirds of the pond <br /> look good. The rema-inina one-third was disappointinq. This area <br /> was probably over-compacted during construction and has since <br /> been harrowed for reseeding. <br /> The drainage net was installed in Nov-Dec of 1990 with the <br /> recycle pipeline outside the pond being completed in the Spring <br /> of 1991 . <br /> Stability monitoring is onqoing with oversight by Knight-Piesold <br /> and Co. (Cursory review report by Knight-Piesold included in <br /> Appendix) . <br /> The recycle water system was operational for the total reporting <br /> year . r� water balance is included in the Appendix as required by <br /> Stipulation 13 of ^R-09, although no effort was made to quantify <br /> contribution by precipitation and ground or surface water inflow <br /> or losses in products shipped , evaporation, leakage or as <br /> moisture content of deposited tailings. <br /> A TRF is ongoing on the discharge from this site also because of <br /> sporadic toxicity experienced in quarterly samples . Because of <br /> the sporadic nature of the toxicity, pinpointing the cause will <br /> probably be difficult. <br /> Planned activity for the 1991 reporting year includes the <br /> following: <br /> (1 ) Maintenance of the vegetation on the outslopes by <br /> fertilizing (if required) and replanting of the area that <br /> was harrowed because of minimal germination. <br /> (2) Installation of a system to reduce wind erosion on the dry <br /> beach area. This will be a piping system connected to the <br /> recycle water system and a water aun for spraying the beach <br /> area as needed . <br /> Tailings Pond No. 3 Area - Plate No. 3 <br /> Tailings Pond No. 3 was used as a spill catchment for the <br /> tailings booster pump located at the site. <br /> - 4 - <br />