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HomeMy WebLinkAbout1993.04.22 - Final Update on Recent Waterline Letter Report from Lisa Palazziyw °•r:y r' - .Lr r'. 'r t :l . • , . •.i- -'l:-' _: {R,1 . - •.ti: •. . Rk r: .ter, _ _ v; "" ::• .,: ' '.:.,.', _ s: a i'. •'•r -t 1: - ' l AV rimtiSYi . _ .r` Wit• %.:; :4^ MIN, Min 203 Faursh Am F.sst OlympiL WA 99501 S 534 aM4 M MO DATE t April_ •22 , ,1983 - Update `of meo of November .30 1992) ia' ..y _ Dave Peterson. FROM: Lissy Paiazzi REGARDING • Final update' 'an 'recent:4y iter'li iie ' Letter_-- report . Report.File Number: E92 -0059 (EES42323.007) Report Subject: Discussion of •wetlands regulatory issues on 2 properties'eing evaluated by the City as sites for City water facilities -. _ Please refer to Gregg Miner's Technical Memorandum of Octoberx. 13, -1992 and Lisa Palazzi.' s Memo of November 30,.-1992.. for additional details There are two sites under evaluation Site 'l is- the'Ci'ty filtration plant site and the pipeline route south of that to Sims Way'.-'-:Site. 2 is -the County pipeline ' route south of Four Corners,. paralleling the existing powerline easement._ Both s sites have been visited by wetland specialists from CH,.MHill (Gregg Miller)', and from Pacific Rim Soil & Water ' (Lisa Palazzi) . g, y On Site 1, three areas have been evaluated £or status as jurisdictional wetlands: " 1) the southeast corner of the filtration plant parcel, identified as s Wetland 2 in Gregg Miller's (of CH=MHill) Technical Memorandum (TM) of a October 13, 1992, ' 2) a drainage crossing further down Rainier, approx. 200 feet from Discovery Road, identified as Wetland 3 in Gregg's TM,.and 3) a broad wet area along the-north side of Discovery Road, identified as Wetland 1 in Gregg's TM. wetland 2 • s jurisdictional wetland based both on meeting the 1989 Federal. Method cri. a and based on size (greater than 1/4 acre). Common overstory vegetation is western redcedar and willow; -Common shrub vegetation is two different species of wild rose, Douglas spiraea and hawthorne; Common herbaceous vegetation is slough sedge and several varieties of juncus'. This Palustrine'Emergent/ Scrub Shrub. wetland extends off site to the southeast for an unknown distance, so its entire size is unknown. However, wetland acreage on'the site is estimated to be 2 7 x°93 greater than 1%2 -acre. Based oii'"on -sii ~attributes and it is= assumed to bey;. ei`tfier •a Zow Category II -or high Category III 'wetland. " However :ahat rating is contingent _on •functions and .values of..=.the entire - wetland »- I. e..' includingoffsiteportions : "..:The' jurisdictional ..edge : on site is flagged and ready .for survey. ' :' v. Wetland 3, the drainage crossing at Rainieras vre l as off road areas to the west, -was revisited and .determined with certainty'to not be ..-.jurisdictional wetland. -It does not meet :all three criteria .in any one area until a3 most $0 feet east of the Rainier easement where the water backs up slang Discovery Road.';-. . However, the culvert does not appear to be-properly installed and drainage issues will have to be addressed to avoid seasonal flooding across the road surface. Wetland 1 'is actually an 'extension of a broad, flat drainage 'area that initiates : at Wetland 2, then drains SSE toward Discovery Road, crosses under Discovery-, eventually draining to Sims Way and then to the Shoreline. Vegetation in this area was not evaluated extensively as it is outside the =oad easement: -:'It is unclear whether the entire drainage area between Wetland 1 and 2 is connected via surface hydrology. , If so, then it ' is regulated as one. system rather than as isolated wetlands. We are in the process of evaluating and £Tagging. thatdrainagecorridor, and so will have that answer soon. In any event, Wetland 1 is jurisdictional wetland, but appears to be at least 10 -20 feet outside of the Rainier easement boundaries. No wetland rating information is available for this wetland at this time. 1 On Site 2, we evaluated three areas for status as jurisdictional. wetlands: 1) a drainage crossing the maintenance road along the powerline easement1about1/4 mile south from the top of the slope break in the middle of Section 4 (not referenced in Gregg's TM); 2) a bowl- shaped wetland directly at the top of the above described slope break that appears to have developed in a borrow pit, identified as Wetland 8 in Gregg's TM; and 3) a broad flat drainage that crosses the utility corridor and maintenance road about 50 -100 feet north of the 'toe of the slope. This wetland was not referenced in Gregg's TM, but in the previous memo from Lisa Palazzi, this was identified as Wetland 9. The drainage is not a jurisdictional wetland, but would probably be regulated as a seasonal stream important for flood control and runoff. It did not meet the three parameter wetland criteria. Wetland 8 is actually two small bowl - shaped wetlands located near the top of the slope break. Both - appear to be a result of excavation, but have developed into small Palustrine Emergent wetlands supporting juncus effusus (soft rush), Douglas spiraea, wild rose, cattails, and willow. They are rather small and may not bequitelargeenoughtobejurisdictionalsize (1/4 acre), but they do meet the three parameter wetland criteria. It is expected to rate as a Category IV wetland. Al •f: rF'' .Si ~' S• .'.S f L.. i:' =i: .\.• r,} • ri. - .. Wetland '9 is vrisdictio :., - -' e - 4' nab. Wtland .rh western portion of a shallow drainage .''.:< •;.;; r:- that run's .across the toeslope from the east for an unknown distance.-"The ,area = under ,the power lines is ..Palustririe Emergent, `primarily grassed, = but also' supporting wild rose and cattails in :'certain -areas.•"::The. 'areas further .east support' what appear to be .large alder' and willow. .trees. -.In' its .entirety, it is likely to be a Category, 21 or III w_eiland, although the portions under the power lines Gtould berated Category IV: Because there is no :adopted ordinance in the County, we will-require some guidance from the City on what'' odel or ordinance to use as a guide to determine buffer widths. . If you ve any questions, please feel free to oZsaPazzi Port Townsend Wetlands Specialist - - ARCPACS certified soil specialist Certification #3313 M rFf--- =N.2 =! J. YEE F *0 wV _STneill 0 00 0 K Z0. frr r 0°tff20°2 T + ` , y 8 M ^ o i A cog 914 a—zam...5 T 3, TAX 26 ti Z Of L 50c, J. 0Osc in -Z • 0 0 R fSfR KESE ?,VO f R k rte ROPOSED I-%-_: VILTRI'lle i5L. OW S NN 0l SITEGoo HOOD STAM Sc rin BAKER 9 PQZ7;_ WETLAND S, Hill 7WETL#,N - ILWE'l j rT CIT Y.......CT jtjL A JI r . F if zt* .1 4"ll P [iz I I t T 1 E I ZIP rru- cf 7K FIGURE 3 Approximate Location of Wetlands. B uundaries and total size have not been determined. Refer to tat. I 5 0 0 KESE ?,VO f R k rte ROPOSED I-%-_: VILTRI'lle i5L. OW S NN 0l SITEGoo HOOD STAM Sc rin BAKER 9 PQZ7;_ WETLAND S, Hill 7WETL#,N - ILWE'l j rT CIT Y.......CT jtjL A JI r . F if zt* .1 4"ll P [iz I I t T 1 E I ZIP rru- cf 7K FIGURE 3 Approximate Location of Wetlands. B uundaries and total size have not been determined. Refer to tat. I 5 la F .rr !j_ rw.`. i'' f s i t;y .. - ;jz. z Gi- G :, - -ti ' . •. -_ 1 .. : ':: : •_ _r. ,y;. • f`,ti'^i-'' fir, •1 s - .. Ii l„r. ..r i,. ,y-. 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SERVICES) LEGEND: ErASIS OF BEARING UNLESS" OTHERWISE NOTED WASHINGTON STATE P. GROUND EL_ EVATlON COORDINATE SYSTEM MAIL BOX _ o . SAN. SEWERI STORM WAT MANHOLE. jFRTf AL DATUM: m STORM - 1NLET VALVE.. BOX/ -WATER METER, SEAN LEVELME4NspaEALL m TELEPHONE ' RISER/ BOX UTILITY POLE POLE W /LIGHT DATE OF SURVEY: UTILITY FIRE HYDRANT MEAN SEA LEVEL GUY WIRE NGVD 1929) STREET TRAFFIC SIGN CONTOUR INTERVAL 2 D TREE AS NOTED 7-.,,=. op. WETLAND DEFINED BY OTHERS DATE OF SURVEY. FENCE LINE' SEPTEMBER 1993 UNDERGR: POWER UNDERGR. TELEPHONE WATER LINE DITCH CENTERLINE AS BUILT SAN. SEWER LINE SECTION S_ UBDIV. LINE R/W LINE CENTERLINE R /W. LINE NOTE: LOCATION OF UNDERGROUND : LINES AND STRUCTURES IS BASED ON SURFACE MARKING AND EXISTING RECORDS AVAILABLE AND HAS .TO.. BE FIELD VERIFIED PRIOR TO CONSTRUCTION CALL 1- 800 - 424 -5555 FOR LOC. 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SEWER/ S Form:lac ------------------- PROJECT- LOCATION - ENTRY ------------- 20- Aug- 09 :31 - - -+ ACTION ID: 199400259 SECTION: EP PROJECT MANAGER: SMITH PROJECT: PORT TOWNSEND, CITY OF SITE NUMBER: [1 ] LATITUDE & LONGITUDE ---------------------------- LATITUDE: [48 -6 - 9.7789 ] LONGITUDE: [122 -48- 13.5358] UTM COORDINATES ------------------------------ ZONE: [10] NORTH: [5327520.00 ] EAST: [514610.00 ] 1 x 2 DEGREE QUAD MAP 15 x 15 MINUTE QUAD MAP 7.5 x 7.5 MINUTE QUAD MAP VICTORIA PORT TOWNSEND PORT TOWNSEND SOUTHQUARTER: [SE ] SECTION: [9 ] TOWNSHIP: [30N ] RANGE: [1W ] CITY: [Port Townsend ] COUNTY: [Jefferson ] STATE: [WA] DIRECTIONS TO -SITE: 3 CHOOSE: Query Add Update First Last Next Prev Remove Exit Display the Next Record in the List