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Home My WebLink AboutWetland delineation-1999 �„ ,11 FE DI gVel9kc. JUN 14 1999 moray Biological (?onst4ltants ferry Ggray - President kI Chris Diesen Project Wetland Delineation r 1 ' June 9, 1999 :t gray 7reshwater Center • Smite 45 • 2500 Shadywood{toad • Excelsior,AN 55331 Coll free 1-500-271-2450 • Pkonel3ax 612-471-0472 Index ' Chris Diesen Wetland Delineation- June 9, 1999 ' • Routine Determination/Delineation Form(s) page 1-2 ' • Aerial Photo-taken 6-8-99 page 3 • Aerial Photo-NRCS with NWI information page 4 1 • Soils Map page 5 ' • p Location Ma page 6 • Site precipitation data for April and May page 7-8 ' • Precipitation maps page 9 gnc. ' Garay Biological Consultants ferry Gray- President 1 DATA FORM-ROUTINE ONSITE DETERMINATION METHOD ' Field Investigator: Jerry Gray Date(s)of Investigation: June 9,1999 ' Project/Site:Located in Section 30—T.118N.—R23W.W,Hennepin County,MN and within the Minuehaha Creek Watershed. Applicant: Mr.Chris Diesen,1100 Townline Rd.,Maple Plain,MN.55359 ' Plant Community Area Wetland Type NWI Mapped Soils Dominant Vegetation # Circ 39 Cowardin Wet Meadow - I PEMA Yes Hamel phalarb arunAnacea. ' The area under investigation is mapped as PEMCd on the NWI map and borders a large marsh. The adjacent upland is a Bromus-Poa association with clover and alfalfa,a seeded pasture mixture. ' Do normal environmental conditions exist at the plant community?®The area investigated has a history of bring hayed and or mowed. ' Has vegetation,soil,and/or hydrology been significantly disturbed? VEGETATION tPercent of dominant species that are OBL,FACW,and/or FAC ' Percent Basin Dominant Plant Species Indicator Stratum OBL FACW FAC - Phalaris Arandkwea FACW+ herb <100 ' Is the hydrophytic vegetation criterion met? Y-e ' Rationale: more that 500/6 of the composition of the dominant species from all strata are ranked as hydrophytic vegetation. It should be noted that the dominant vegetation,Phalads,exists in the transition zone and in some instances exists on the upland as it follows the southerly fence line westerly. ' SOILS Hydric Histic ' Basin Series/Phase Subgroup Soils List Histosol Mottled Evivedon Gleved Hamel TYPIC ARGIAQUOLLS Yes No No No No ' Other Hydric soil indicators: The upper 10 inches were dark organic content,below the 10 inch level small grains of silica sand were present(less than 1%of the soil)and continued with increased content to a depth of 16 inches. ' Garay 3reshwater Geoter - Si4ite 45 - 2500 Shadywood Road - Excelsior,/VIN 55331 Coll free 1-500-271-2450 - Phokiel7ax 612-4?1-0472 ' Diesen Wetland Delineation-page two ' Is the hydric soil criterion met? Rationale: Based on the low chroma values and moisture in the soil, they are considered Hydric. Oxidized ' rhizospheres were also present. HYDROLOGY ' Is the ground surface inundated? On the day of the initial investigation,no, they were saturated as a result of recent rains, within 4 hours of the field inspection,and the reed canary matt was high in moisture content. ' Depth to free standing water in pit/soil probe hole: Free standing water was present at 14 inches at the wetland edge. ' Other evidence of surface inundation or soil saturation: The area under investigation for a wetland receives considerable surface drainage from the west and was saturated on the day of investigation. Westerly of the wetland edge,the wetland is inundated but this is beyond the assessment area property boundary. ' Is the wetland hydrology criterion met? ® Existing hydrology exhibits wetland characteristics. The area has received "— 125% of normal rainfall" for the current season, most of that was immediately prior to the investigation. The precipitation data is attached. Rationale: The wetland,as determined,maintains hydrology approximately 12-14 inches below ground level, beyond the wetland edges,the water table appears to drop dramatically as the edge is on a—5%slope. JURISDICTIONAL DETERMINATION AND RATIONALE The area investigated is a slope wetland. Hydrophytic vegetation is present and the soils are hydric, the ' necessary hydrology does support a wetland. Respectfully submitted: Date 9 ' Gerald W.Gray,President-GBC nc. Attachments: Aerial photo taken 6-7-99 showing approximate: ' a. soil test sites b. wetland edge c. dominant vegetation ' d. outflow of surface water e. existing ditches affecting the wetland area f, approximate property lines g. 1998 delineation ' NRCS aerial photo with NWI wetlands Copy of Hennepin County soils map Location Map as per location within the township Site precipitation data for April and May-1999 ' Precipitation maps showing%of normal,weekly and ranking Survey to be Provided by Schoberg Land Surveying r LOA w � 3 ` •gum - + ■ ■ ■ RUM ■ MM + ■ ■ ■ . -.,. ,_ • + soil test(s) j 4=� x IL Iv ko- vt ' a r roperty lines - �,- Gray Biological , " ?, N Consultants, r s .w 3� -air ` t:...y• "f .G r: ..,. ,. ..�� - - r r rr rr r rr r rr r r r rr rr r r rr rr rr r r,F. 1 Chris Diesen Project B Ha r • // r area i, a KkB M a H a Ha f �w Gray Biological KIC2 Soils Map U g Consultants, Inc. �,� • ` �" �' '' �' �_ Chris Diesen Project - Project Area Maple , rw- - _. •Plain f Townline Road •► _k- ?_ � — . •0 988 - - o 4b .0000 _ 4 .0.00. - rw._ - _ — I • _ �J 1O _ . t • �\ \ �, '\ � _-...� ..� rte ' ..� __. �/� - li • C r • -1`_ ��/� - � --�• ` - JI % ��\ ,vim. / O , 962 O Ii Gray Biological • "� Consultants Inc. Page 1 of 1 '  . . .PRECIPITATON DATA. . . TOTAL FOR THE MONTH. . . . . 6.57 DEPARTURE FROM NORMAL. . . 3.18 INCHES ABOVE NORMAL TOTAL FOR THE YEAR. . . . . . 14.93 ' DEPARTURE FROM NORMAL. . . 5.35 INCHES ABOVE NORMAL GREATEST DAILY. . . . 1.36 INCHES ON THE 12TH. . .NUMBER OF DAYS. . .MEASURABLE PRECIP. . . 160.10 INCH OR MORE. . . 110.50 INCH OR MORE. . . 51.00 INCH OR MORE. . . 1 ' Precipitation Data for May-1999 1 I I . II II ( I IIhttp://www.soils.agri.umn,edu/research/climatology/text/prelim_lcd/msp/9905.txt 6/9/99 ____r.,. ....... .�.. � agy/iexuprenm 1aumsp/99U4.txt 6/9/99 Weekly Precipitation, Departure and Ranking Maps for June 7, 1999 Page 1 of 2 ' Precipitation Precipitation % Normal Jun 02-Jun 07, 1999 Apr 01-Jun 07, 1999 l L t 4.0 225 2.8I-5F, 200 ' 76 �.0 DNR ts0 DNR 0.6 Waters 125 Waters 0.4 iia ' 0.2 100 0.1 � 9❑ 1 0.0 UG inches ercent State Climatology Office,06-07-1999 State Climatology Office,00-07-1999 1 Precipitation Ranking Apr 01-Jun 07, 1999 99 ' 95 DNR s S Waters 70 ' S0 30 0 lowest-100 highest State Climatology 0 e, 0-0 - 9g t• Return to Minnesota Climatology Working Group Main Page ,ncwg@soils.umn.edu ' http://climate.umn.edu/doc/weekmap/weekmap_990607.htm 6/9/99