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2003-10-27 Replacement Wetland Report.~ SVOBODA ECOLOGICAL RESOURCES Providing the Sharper Edge in Natural Resources & Environmental Consulting ~~ _ October 27, 2003 ` Lisa Goeb Gity Administrator ~ _ " P.O. Box 9 ~ - Albertville, MN 55301 RE: Project Name: Outlets at Albertville - Phases I and II (formerly known as Minneapolis Factory Shoppes, Albertville Factory Shoppes, and Albertville Outlet Mall in SER files) Project Location: E 1/2 of Section 35", T.121 N, R. 24 W, Albertville, Wright ' ~ ,County, Minnesota SER Project No.: 2003-011-26 _ . Project Description: Replacement Wetland Monitoring Report - Year V _ Dear Ms. Goeb: _ Pursuant to Minnesota Wetland Conservation Act (WCA) §8420.0620 and to the Army Corps of , ' Engineers (Corps) permit issued for this project, Svoboda Ecological Resources (SER)- staff. visited the above-referenced site on June S and July 30, 2003, for the purpose of monitoring the progress of the proposed replacement wetlands and wetland buffer seeding areas. This is the, . ~ _ fifth and last year of monitoring out of the five years required by the WCA.and by the Corps permit to determine if replacement wetlands satisfy replacement of functions and values lost by. " permitted wetland fill. -The purpose of this year's f eld visits was to: . 1) Obtain seasonal water level measurements between April and October; 2) Develop, a list of dominant. vegetation in the wetland; ands 3~) Take color photographs. from the photo reference points to document progress. In addition, SER staff inspected the sites for existing or potential problems with the progress of _ the replacement. wetland areas. Approximately 113,691 ft (2.61 acres) of wetland fill is associated, with this project. As a result, 170,320 ft2 (3'.91 acres) of New Wetland Creation and 202,990 ft2 (4.66 acres) of Public Value Credit was~proposed under the Wetland Replacement Plan Application Revised Plan submitted - by the client. The Revised Plan proposed five new wetland creation areas located in the southern _ and western portions oP the site; and three areas of wetland buffer seeding area located on the western .and southern portions of the development. To maintain consistency with the Revised - , 2477 Shadywood Road Excelsior, MN 55331 (952) 471-1100.(Office) (952) 471-000? (Fax) Plan, these new wetland creation areas are referred to as NWC-1, -2, -3, -4, and -5.. During our site visits, these five proposed mitigated wetland areas were observed. As was suggested in our 2000, 2001, and 2002 Local Government Unit (LGU) and Corps ` reports, our first site visit was made early in the season to assist in.determining if hydrology in these basins is adequate for wetland formation. Results are discussed in the Conclusions section at the end of the report. This year, SER is.-only sending out one report. instead of the separate LGU and Corps repprts it has produced in the past. Laura Eklov from SER discussed whether the due date for the Corps , report could be extended this year with- the newest Corps regulatory contact for Wright County, Tim Fell, and he approved. The acreage of the mitigation areas were measured in 2002 during the October site visit using a sub-meter accurate Global Positioning System (GPS) unit. However, Wright County had an unusually high amount of precipitation in 2002, even late in the growing season. The~wetlands onsite were extremely flooded in October," so complete boundaries were not obtainable: some - portions of every wetland's boundary were deemed inaccessible by the field staff visiting. the site. Due to these circumstances; SER estimated the remaining portion of the boundaries using aerial photographs taken in 2000. Thus, we could only estimate total wetland acreage this year; it was . calculated to be approximately 166,674 ft2 (3.83 acres). This is a predicted deficit of approximately 3,646 ft2 (0.08 acre) from what was intended, although it is still over the l :l minimum area required to mitigate for wetland impacts. ~A graphic with the GPS points on it in red and the estimated boundaries on it in yellow is included as Appendix A. ., - SEdt had originally suggested that. the boundaries of these basins be re-measured using GPS in 2003. in order to get a more accurate determination of the amount of created wetland onsite. ` However, in 2003 some of the wetlands seemed far drier than normal. Precipitation during the growing season prior to the. site visits was normal to above-normal,'so perhaps below-average winter precipitation not providing adequate recharge water to these basins is the cause of their dryness (Figure 1). Thus, measuring the wetlands using a GPS unit this year would probably- produce inaccurate results. SER staff can ,locate the wetland boundaries and calculate final wetland acreages in 2004 for use in comparing final wetland sizes to proposed wetland sizes. OBSERVATIONS , " NWC-1 This area was designed to provide 1.62 acres (approximately 70,567 ft2) of New Wetland Creation (NWC) credit. SER approximates that this basin was 1..92. acres (83,604 ft2) in 2002. This is potentially a surplus of 0.30 acre (13,037 ft2). The desired wetland type noted in the Replacement Plan Application (RPA) was Type 3 palustrine,`emergent, seasonally flocsded and excavated (PEMCx). _ The basin was classified as a Type 3 PEMCx wetland.. Last year, water was ponded in the basin ." over 1 foot deep. Open water covered 50% of the basin early in the season and 10% of the basin , 'late in the season. This year, there was only 15% open water in June and no open water in July, _ _ ~ probably -due to a combination of increase in vegetative growth and a lack of winter precipitation. In June, parts of the basin were ponded. over 3 inches deep, other portions were saturated to the soil surface, and others were dry. Conditions were similar i~- July: Please see Photos"1 and 2 of the Photo Log at the end of this report. Adjacent slopes ranged from between 3:1 to greater than 5:1 (i.e., a gentle slope). A large number of frogs were noted in June and-July. Tricolor blackbirds were noted.. in June. In both June and July, the west end of the basin was dry. In areas that had been covered by ponded water in the past, approximately 15% of the basin was covered by dead vegetation which appeared to be a combination of reed canary grass (Phalaris arundinacea) and sedges (Carex ' spp.). Muddy ground covered with lesser duckweed (Lemna minor) covered around 5% of the basin in June. Narrow-leaf cattail (Typha angustifolia) covered about 40% of the basin in June but increased to 70% of the basin in July. About 10% of the basin was live reed canary- grass in June'but no reed canary grass was noted in July. Water plantain (Alisma plantago-aquatica) and blunt spike rush (Eleocharis obtusa) each made up 6% of the basin in July. Other plants noted in the area included lily (Cilium sp.), sedges, curly dock. (Rumex crispus), slender rush (Juncos tenuis), broad-leaf arrowhead (Sagittaria latifolia), woolgrass (Scirpus cyperinus), arrow-leaved tear thumlZ (Polygonum sagittatum), giant goldenrod (Solidago gigantean), smartweed (Polygonum sp.), panic grass (PanlGUm sp.), and blue vervain (Verbena hastata). Cover in the adjacent upland area included about 50% mowed Kentucky bluegrass (Poa pratensis), 5% reed canary grass, 5% bare ground, white clover (Trifolium repens), :alfalfa (Medicago setiva), black medick (Medicago lupulina), tall goldenrod. (Solidago altissima), annum ragweed (Ambrosia artemisiifolia), slender rush, yarrow (Achillea millefolium), and strawberry (Fragaria sp:). NWC-2 This area was designed to provide 1.1.4 acres (approximately 49,658 ft~) of NWC credit. SER approximates. that this basin was 0.63 acre (27,366 ftZ) in 2002. This is potentially a deficit of 0.51 acre (22,292 ft2). The desired wetland type noted in the RPA was Type 3 palustrine, emergent, seasonally flooded-and excavated (PEMCx). The basin appeared to be a Type 3 PEMCx wetland at the time of the two site visits. Last year, ponded water was ponded over 1 foot deep in this basin. Open. water covered 45% of the site early in the season and 20% of the basin later in the season. This year, there was orfly 10% open water with minor duckweed in June and no open water in July: This decrease is probably due to a combination of increase in vegetative growth and a lack of winter precipitation. In June, parts of the basin were ponded between about 3 and 6 inches deep, other portions were saturated to the soil surface, and others were dry. All of the basin was dry in July. Please see Photos 3 and 4 of the Photo Log at the end of this report. Adjacent slopes ranged from between 3:1 to greater than 5:1 (i.e., a gentle slope). Redwing blackbirds were noted in July. Minor trash was found by the side of the basin near Burger King in both June and .July.. Approximately 20% of the basin was covered by dead vegetation, including reed canary grass (Phalaris arundinacea), in areas that had been covered by ponded water in the past. Reed canary grass made up 15% of the basin in June and 30% of the basin in July; this is an increase in reed canary grass coverage from last year, when reed canary grass covered 25% of the basin early in the season and decreased to 5% late in the season. Narrow-leaf cattail. covered 50% of the basin in June and decreasedto 30% of the basin in July. Sedges covered about 10% of the basin in July. Other plants found in the basin included panic grass, blue vervain, smartweed, broad-leaf arrowhead, and green bulrush (Scirpus atrovirens). Plants in the adjacent upland area included approximately 50% mowed Kentucky bluegrass, approximately 20% yellow sweet clover (Melilotus offrcinale), about 15% reed canary grass; other plants included curly dock, annual ragweed, swamp milkweed (Asclepias incarnata), and clover (TrifoZium sp.). ' NWC-3 This area was designed to provide 0.~0 acre (approximately 21,780 ft2) of NWC credit.. SER approximates that this~basin was 0.40 acre (17,371 ft2) in 2002. This is potentially a deficit of 0.10 acre (4,409 ft2). The desired wetland type noted in the RPA was Type 3 palustrine, emergent, seasonally flooded and excavated (PEMCx). ` It was noted in 2000 that NWC-3 had been divided into two areas by a berm leading to a . billboard on the site. Vegetation on the western side (3A) of this berm was examined sepazatel'y from vegetation on the eastern side (3B) of this berm. Frogs were found using both parts of the basin in June and July. Deer tracks and mallards were found in 3B in June. ,This basin appeared to be a Type 3 PEMCx wetland on.both sides;of the~berm. Last year; there was over 1 foot of ponded water in both sides of the basin. This year, water ponded in 3A was greater than six inches deep in both June and July, and water ponded in 3B was greater than 1 foot in June and greater than 6 inches in July. Last year, open water covered 80% of'3A eazly in the season and 20% of 3A later in the season. This year, open water with filamentous blue-green algae covered 20% of 3A in June, and no open water was noted in July. Despite the decrease in .water depth from last year; most of this decrease in open water was due to an increase in cattail coverage. Last year, open water covered 90% of 3B early in the season and 55% of 3B late in .the season. This year, open water with filamentous blue-green algae covered about 30% of 3B in -June and 20% of 3B in July. Lesser duckweed was noted in the open water in July. Please see Photos 5, 6, and 7 of the Photo;Log at the end of this report. On the 3A portion of this basin, vegetation was dominated by 40% narrow-leaf cattail in June and 90% narrow-leaf cattail imJuly.' Reed canary .grass made up about 15% of the basin in June and decreased to less than 5% of the basin in July., Sedges covered 10% of the basin in June. Other plants noted in 3A included water plantain, swamp milkweed, and soft-stem bulrush (Scirpus val~dus). ~~ On the 3B portion of the basin, vegetation was dominated by 4S% narrow-leaf cattail in June and 70% narrow-leaf cattail in July. Sedges made up about 10% of the basin in June. Other plants noted in 3B included soft-stem bulrush, water plantain, woolgrass, and reed canary grass (5% of the basin). ' The adjacent uplands consisted of reed canary grass (65% noted in June and 35% noted in July), ,giant goldenrod, bull thistle (Cirsium vulgare), sedges, annual ragweed, sumac (Rhus sp.) "saplings, clover, yarrow, sandbar willow (Salix ezigua), 'Kentucky- bluegrass, blue-eyed grass (Sisyrinchium montanum), common burdock (Arctium minus), swamp milkweed, redtop (Agrostis alba), white sweet clover (Melilotus alba), tall goldenrod, cinquefoil (Potentilla sp.), blue vervain, slender'rush, white clover (Tr{folium repens), aster (Aster sp.), and curly dACk. NWC-4 This area was designed to provide 0.26 acre (approximately 11,326 ft2) of NWC credit. SER approximates that this -basin was 0.22 acre (9,456 ft2) in 2002. This is potentially a deficit of 0.04 acre (1,870 ft2). The desired wetland type noted in the RPA was Type 3 palustrine; emergent, seasonally flooded `and excavated (PEMCx). This basin appeared to be a Type 3 PEMCx wetland. Last year, water was ponded over 10 inches deep in this area. Open water covered 40% of the area early in the season and about 10% of the basin late in the season. This year, the basin was ponded over 6 inches in some portions of ' the basin in-both June and July. In June, parts of the basin were saturated to the soil surface. In July, areas of the basin that were not ponded were dry. Muddy water with lesser duckweed covered 15% of the basin in June; and open water with lesser duckweed covered 65% of the basin in July. See Photos 8 and 9 in the Photo T,og at the back of this report. Adjacent slopes were primarily greater than 5:1 (i.e., gentle) but were closer to 2:1 (i.e:, steep) on the western side of the basin (where PVC-1 was built). Despite this steep slope, no problems associated with erosion were noted at this time. Redwing blackbirds and frogs were found using the basin in July. Frogs were also found. in the .basin in July,. and raccoon tracks were found. This year, NWC-4 was unusually wet along its southern'side and NWC-S was unusually wet along its northern side; they had basically merged together. The berm between NWC-4 and NWC-5 seemed to ~be down, causing water to flow from NWC-S to NWC-4 However, SER still took data for these two basins separately. ~. The basin was dominated by 65% narrow-leaf cattail in June and 15% narrow-leaf cattail in July. Reed canary grass decreased from 15% in June to 5% in July. Bare ground covered about 10% of the basin in July. Non-dominanf plants in this basin included Kentucky bluegrass, annual ragweed, water plantain, blunt spikerush, and arrow-leaved tear thumb. Plants in the buffer area (PVC-1) included reed canary grass (about 20% in June and about 40% in July), Kentucky bluegrass (about 50% in June and 20% in July), Canada thistle (Cirsium arvense), clover (Trifolium sp.), annual ragweed, sow thistle (Sonchus at-vensis), and dandelion (Taraxacum oj~cinale). ,`There was about 25% bare ground in July. NWC-S , This area was designed to provide 0.39 acre (approximately <16,988 ft2) of NWC credit. SER approximates that this basin was 0.66 acre (28,877 ft2) in 2002.. This is potentially a surplus of 0.27 acre (11,889 ft2). The desired wetland type noted in the RPA was Type 3 palustrine, emergent, seasonally flooded and excavated (PEMCx). , This basin appeared to be a Type 3 PEMCx wetland. Water was ponded over 12 inches in the basin in both June .and July, but in July there were dry areas in the basin.. Operi water with-lesser duckweed covered only 5% of the basin in June but covered about 30% of the basin._in July. Please see Photos 12 through 17 in the Photo Log at the end of this report. Adjacent slopes ranged between 3:1 to greater than 5:1 (i.e., a gentle slope). ,Redwing blackbirds and frogs were noted using the basin in both June and July. Dragonflies were noted in the basin in July. Minor trash was found in the basin by the culvert during both site visits. NWC-4,was unusually wet along its. southern side and NWC-5 was unusually wet along its northern side; they had basically merged together. The berm. between NWC-4 anal NWC-5 seemed to. be down, causing water to flow from NWC-5 to NWC-4. However, SER still took data for these two basins separately. , Narrow-leaf cattail cover decreased from 80% in June to 30% in July. In July, dead vegetation covered about LO% of the basin in areas that had been ponded previously. Reed canary. grass increased from less than 5% in June to 15% in July. Other plants found in this. area included giant goldenrod, sedges, peach-leaf willow (Salix amygdaloides),.woter plantain, new England .aster (Aster novae-angliae), blue vervain, and smartweed. , The upland plants included about 20% reed canary grass; other plants included annual ragweed; . dandelion, Kentucky bluegrass, Canada thistle, giant goldenrod, tall goldenrod, wood sorrel (Oxalis stricta), sow thistle, cinquefoil, blue vervain, sumac, yarrow, curly dock, common 4 milkweed (Aslcepias speciosa), sage (Artemesia sp.), .hoary alyssum (Berteroa incana), and timothy (Phleum pratense). In June, cattail .were found creeping upslope into the buffer area, , even though that aria was dry; this seems to suggest that last year was particularly wet. CONCLUSIONS There are a couple of management concerns that SER deemed necessary to address this year: - In 2000, it appeared that most of the areas are drier than what was proposed in the RPA. , The 2001 and 2002 site visits revealed an increase in hydrology in these basins because ', in 2001 and 2002, precipitation in May and June was normal to above-normal. The. preceding winter also provided plenty of runoff water for the, spring recharge of these basins. During the second site visit in 2003, a couple of the basins seemed drier than in 2001 and 2002:" NWC-1 and NWC-2: In 2003, precipitation during the earlier part of the . growing season was normal to above-normal, although precipitation from the preceding winter was generally below-normal. SER believes that the conditions in NWC-1 and NWC-2 reflect normal variation in hydrologic conditions due to variation in precipitation i - (in this case, a lack of adequate spring recharge from snowfall melt). There is a slight possibility that, there may have been a change in the amount of water fed into these twq basins due to the increase in built-up areas nearby in Albertville, but if this were the case one would expect NWC-3A and NWC-3B, which ark reasonably close to NWC-1 and NWC-2, to also be dry. Figure 1 depicts precipitation by month for 2000 through 2003, including the. normal. range for each month. - .This year, NWC-4 was unusually wet along its southern side and NWC-S was unusually wet along its northern side; they had basically merged together. ,The berm between NWC-4 and NWC-5 seemed to be down, causing water to flow fr©m NWC-5 to NWC-4. ' SER would like the opinion of the LGU and the Corps as to whether this,area will need corrective actions performed on it (e.g., whether the berm should be built back up). SER recommends that either the LGU and the Corps independently inspect or that they meet with. SER to inspect NWC-4 and NWC-5 in spring., pf 2004 and make recommendations at this time. - Reed canary grass is present in most of the created basins. In two of the wetland areas (NWC-3A and NWC-4), reed canary grass decreased between June, when coverage was about 15%, and July, when coverage was about 5%. In two ofthe-basins, reed canary ,grass increased: NWC-2 saw an increase in reed unary grass coverage from. l 5% to ' 30%. NWC-S saw an increase from 5% coverage in June to 15% coverage in July. Thus, reed canary grass coverage is not particularly high jn any basin except NWC-2, If the City or Corps would lilEe remedial actions to take place, SER recommends spot- treating patches of reed canary grass in NWC-2 with Rodeb next spring. \ - Small amounts of trash were found in NWC-2 by the Burger Kirig and in NWC-5. This is technically wetland fill and: should be removed. - There is a small amount of filamentous blue=green algae in the open water areas of ~, NWC-3A and NWC-3B. However, the amount noted was always relatively small. No ~, remedial measures are deemed necessary at this time. r i As mentioned before, this is the fifth year of mitigation monitoring for this site. Typically, after mitigation wetlands have been monitored for five years, the LGU (in,this case, the City of Albertville) decides whether the mitigation wetlands: are adequately functional and meet requirements set forth in the project Replacement Plan'Application (RPA). The City may require a technical evaluation panel- (TEP) review of this site prior to making a decision regarding wetland adequacy. At the City's request, SER can re- measure the mitigation wetland basins using asub-meter accurate GPS unit. As was mentioned earlier in the report, the acreage of the mitigation areas were last measured in 2002: At the time they were measured, the wetlands onsite were extremely flooded so complete boundaries were not obtainable and SER estimated the remaining portion of the boundaries using aerial photographs taken in 2000. Total acreage was approximated to ~ be -166,674~ft2 (3.83 acres). This is a predicted deficit of approximately 3,646 ft2 (0.08. acre) from what was intended, although it is still over the 1:1 minimum NWC required to i mitigate for wetland impacts (there is plenty of PVC to makeup the. remaining 1:1 of replacement): New GPS data taken in 2004 will help determine if wetland acreage is - adequate~to mitigate for wetland fill. A minimum,of 113,691 ft2 (2.61 acres) of NWC would be needed. Based on our observations, it was quite apparent that all replacement wetlands and all wetland buffer seeding areas did exist at the time of the visit. The mitigated wetlands will continue to be monitored according to the monitoring plan outlined ip the Wetland Replacement Plan Application and the Corps permit issued for this bite. If you have any questions or,need additional information regarding this site, please, feel free to cor_tact us at (952) 471-1100. Thank you. ~ . Sincerely, Svoboda Ecological Resources - ~~ Franklin J. Svdboda, CWB, PWS .Laura E. Eklov Vice-President EcologistlProject Manager cc: Neil Parker, Chelsea Property Group, Inc. Eric Helstrom, Chelsea Property Group, Inc. Bob Ufland, Chelsea Property Group, Inc. Tim Fell, Army Corps of Engineers \ Attachments: ~ Photo Log Figure 1 -Elk River Weather Station Precipitation and WETS'Data Photo Log PHOTO 2: NWC-1, facing east. Photo taken in July. This photo is similar to Photo 1 of the 2002 report and Photo 1 above. PHOTO LOG OF SITE PHOTO 3: NWC-2, facing east. Photo taken in June. This photo is similar to Photo 3 of the 2002 report. Note that the basin is much drier than in 2002. Outlets at Albertville - Phases I and II ,~; }~ S V ~ p Q ~A Mitigation Monitoring -Year V ~'; '~, Ecological Resources Page 1 of 6 PHOTO 1: NWC-l, facing east. Photo taken in June. This photo is similar to Photo 1 of the 2002 report. Note that the basin ins much drier than in 2002. PHOTO 4: NWC-2, facing east. Photo taken in June. This photo is similar to Photo 3 of the 2002 report and Photo 3 on the previous page of this report. PHOTO 5: NWC-3A, facing west. Photo taken in June. This photo is similar to Photo 5 of the 2002 report. PHOTO 6: NWC-3B, facing west. Photo taken in July. This photo is similar to Photo 7 of the 2002 report. Note that the amount of cattails in the basin has increased since last year. PHOTO LOG OF SITE Outlets at Albertville - Phases I and II ~1f ~ SV 0 B (~ DA Mitigation Monitoring -Year V ~,'`° Ecological Resources Page 2 of 6 PHOTO 8: NWC-4, facing north. Photo taken in June. This photo is similar to Photo 9 of the 2002 report. PHOTO 7: NWC-3B, facing east. Photo taken in June. This photo is similar to Photo 8 of the 2002 report. Note the increase in cattail cover and decrease in open water since 2002. PHOTO 9: NWC-4, facing north to northwest. Photo taken in July. This photo is somewhat similar to Photo 8 above. PHOTO LOG OF SITE ~ .~ ~1 b Outlets at Albertville - Phases I and II ;0 -~_~- J V 0 D Q ~~ Mitigation Monitoring -Year V '~ Ecological Resources Page 3 of 6 PHOTO 11: Where NWC-4 and NWC-5 seem to join, facing south. Photo taken in July. PHOTO 10: Where NWC-4 andNWC-5 seem to join, facing north. Photo taken in July. PHOTO 12: NWC-5, facing west. Photo taken in June. This photo is similar to Photo 11 of the 2002 report. PHOTO LOG OF SITE ~ ~ ~` ,~ D Q ~ A Outlets at Albertville - Phases I and II ~~; ~~ _ V D !'~ Mitigation Monitoring -Year V ''>'~ 'r Ecological Resources Page 4 of 6 PHOTO 13: NWC-5, facing west. Photo taken in July. This photo is similar to Photo 11 of the 2002 report and Photo 12 on the previous page of this report. Note the changes in vegetative coverage since June. PHOTO 14: NWC-5, facing southwest. Photo taken in June. This photo is similar to Photo 12 of the 2002 report. PHOTO 15: NWC-5, from the south end facing north. Photo taken in July. PHOTO LOG OF SITE ~. Outlets at Albertville - Phases I and II ~~~~ ~ S~IO BO DA Mitigation Monitoring -Year V '~> Ecological Resources Page 5 of 6 PHOTO 16: NWC-5, facing west from the east side. Photo taken in July. Note the dry vegetation on the adjacent slope. PHOTO 17: NWC-5, water lines that indicate that this basin was significantly wetter earlier in the season. Photo taken in July. ~,; ~;, ~„ ,. k.~~ ° ~~ _.~ ~ J ..., ~ S : ' L , ; . i )_ 3 c Y rt S PHOTO 18: This is the existing basin in the center of the parking lot. It is much drier than usual. The areas of dead vegetation are usually ponded. Photo taken in June. 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