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<br />09/04/92 <br /> <br />13:43 <br /> <br />URS CONSULTRNT DENUER <br /> <br />009 <br /> <br />.. <br /> <br />001845 <br /> <br />e <br /> <br />e <br /> <br />The preparation of a conceptual level design for an endangered fishes hatchery facility <br />..~~.me.flf.llll major study task. The operational requirements for this facility are complex <br />In relation to tra(:iitlonalflSh . hatcheries due to ~e unique featur,s of working with rare and <br />endangered fish stocks. An overrIding concern in developing a hatchery design Is the <br />high degree of health risk associated with artificial propagatiot' of endangered stocks at <br />critically low population levels. This problem Is compounded because the facility will be <br />receiving and releasing fish from multiple sources and watersheds. These condItions <br />necessitate that all practical measures are taken to protect fish health and guard against <br />disease outbreaks and transfer among various populations. Potential disease threats to <br />each of the four species have been reviewed so that features which will moderate the <br />threats to fish health can be incorporated in the facility design. Other design <br />characteristics which must be emphasized due to the unique character of endangered fish <br />species culture are methods which will minimize or eliminate predation, escapement and <br />theft or vandalism. Genetic segrE?gatlon as well as the quality and quantity of water <br />available have been given high priority with a resulting marke,d influence on ~ <br /> <br />As stated previously. the purposes of this facility are to meet ndangered fish <br />recovery goals of augmentation of native populations, broodstock an refugia holding and Q <br />to provide facilities for research. The original study scope conte plated preparation of tJ".~ <br />a conceptual level hatchery design for each of the three . slteWI~91~q,9U~rnl ~ vr <br />the site screening process. However, because the three . site e7eill1OtaTecf <br />within the same region of the State, the ewcs staff with agreement of tfie T AC, decided <br />t~~. it u'Qutll G_ ...".g bSAlficiaHo prepare a conceptualleveJ 'hatchery design for each <br />of the three ty es of water supply sources: warm well water, co~~ell water and surface <br /> <br />~, .. e <br /> <br />''''.18Ae,.., Ie 3H~..1t1~~ ~~~ J <br /> <br />, ' '" 'f~n criteria, conceptual hatChery design and cost ^ <br />generated for with three different water supplies. Facilities were ~ <br />1) warm well water at 690F; 2) cold Well water at srF; .and 3) ~ ~ <br />surface water with seasoBal tern erature fluctuations. The .. three different production <br />quantities specified by th cope of work were considered for each of the water <br />supply types. These Inclu e a total annual production for augmentation and research for <br />each of the four speCies of 150,000, 300,000, or 600,000 fish'. A total of nine scenarios <br />were analyzed, including estimation of construction and operation and maintenance costs. <br />The design effort was concentrated on the 300,000 fish production scenario, with some <br />extrapolation of design and 09St Information to the 150,000 and 600,000 quota scenarios. ~ , <br />,General. lf1formatleR concerning the hatChery design is d.escribed In the following -'''9. ~ <br />paragraphso. rt!:'!^~ <br />~o/(tf~ <br />Standardization of the design of the production units allows flex. ibility in production quotas ~~/ ~ <br />for each of the four species. This flexibility would also permit the facility to be used for~~);' <br />--other p11rposes i.......1J1el 'I,. nwerj Hri~e. Initia~'yroductlon quotas were used as a ())I';':,pf> <br />.to~~ <br /> <br />B. .,::;~ <br /> <br /> <br /> <br /> <br />