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<br />~ <br /> <br /> <br />t:~ d _ <br />~~ <br /> <br />- <br /> <br />e <br /> <br />Ramsey County <br />DEPARTMENT OF PUBLIC WORKS <br />:l.377 North RIC' SIr..1 <br />5&lnt Paul. M~I('la 55126 <br />US121 484 il04 <br /> <br />DcvIllOnl 01. <br />Engll1l.nnll <br />M",I"~, <br />MOb4t EQutpmt,nl <br />EnVll'OMIltnlal S,r\lCtI <br /> <br /> <br />tl <br /> <br />RECEIVED Jet 2 5 1988' <br /> <br />RAMSEY coumv <br /> <br />July :?ol, 198U <br /> <br />MarIlyn Rl!lS16:tr <br />2788 Mar I"i 11 S l. <br />Roaeville, MN 5~113 <br /> <br />Proposed D~velupm~nt - The LeXIngton <br /> <br />I rec:tU ved the i nfor"lIla.tl on you molil ed to ma I aat week and 11l3ent <br />.om~ tIme becoming fdffilliar wIth the prOPQ~al and lcc:atlDn of the <br />prOJect. I also upo~e with t~e Rosevil!e engineering departm~n~. <br /> <br />It ~hculd first b~ noted th.t the plan ie In a prrllminary, or <br />conceptual, f~~m. City staff indtcat~d that the City council <br />often approv~s development plans that fulfill ~onin9 <br />requirement. on the baai. of conc~ptual plAns, 5ubJe~t to fInal <br />reVIew and a~~roval by lStaff of site and constru~tlon plans using <br />several crIterIa, ~uc:h as downstruam pipe capeclty. Revl~w and <br />approval by the RIce C~eek Hate-shed DIstrict is al~o requlr'1. <br /> <br />There are inSUffiCIent data available tQ eY~lu~t~ wdt~r quallty <br />Impact:;. of thu propolied devlillopment. T~jo PO'lcJo.. ..r!! ~;.cluded ln <br />the ~onceptudl dH~19n! but propo5~d normal ~nd hIgh water <br />elev~tIOn$ .nd pond ~urf~ce area Rnd lolume data dra nut y~t <br />~v~ilabl~. A sl9nific~nt portIon of the devulopmeot i. <br />Imperv:oU5 ~urFace ~uc:h as parklng lotti! 5tre~t~ and rOQft~ps. <br />The relatIve dr~a. . f the5~ land-uses and a mor~ preCise drainagd <br />p!~n are al~o neCe~~dry. <br /> <br />Outflow from th~ d~Yelopwent WIll ent~r ~ 31J1al1 wetland on th~ <br />~je.l :udtt of Le~:lngton <lncl then flow under Le~/1nglc:n Into Llttlu <br />La~~ Josepnlne. Removal of a largd portIon of ~edlment and <br />nutrients by the 2 pondu on-~lte is neceus~ry to mInImize Impact <br />en the downstream wetldnd. The effectlYenea~ of the ponds in <br />thlU r~gard can be evaluated by considerat\pn of pond and <br />contrlbutlng wdtersh~d characterl~llCS. <br /> <br />An llllportiinl con~t cierat 1 on I ~ the potent I al "Jatelr quail t~ impacts <br />an LIttle La~e J05ephine and Jo~eph!ne Lake. Outflow from LlttlQ <br />t..aI;u JOiaeph i ne is the I argSlit ccntr i butor of wiltt:1" unci phcellhorus <br />to L3ke Jc~ep~ln~. E~timatus of water and phc.phcruH lo~ding <br />from the d~vltl opment can be 1 nc:orporated WI tf. tht!s!~ e>. i st 1ng data. <br />to Itviloludte Hater quality 1mpact5 on Lal:u JO'5ephln~. <br /> <br />. <br />