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Home My WebLink AboutFile Documents.905 Chatfield Rd.0111.2018 (166).ARBK WELS #2 Markup 905 Chatfield L0.01 - Landscape Architecture Notes (1) REWIRED Page: L0.01 - Landscape Architecture Notes AE ap°aokn° Author: rickma The language below is taken directly from Appendix C of the WELS, based on CSU's Fire-Resistant Landscaping guidelines: OfIGANIC SOIL Date: 12/11/2018 3:06:18 PM "Use mulches to conserve moisture and reduce weed growth. Mulch can be organic or inorganic. Do not use pine bark, thick layers neang°ageeeiawisaHe°Eire Cy^°m IV= File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf of pine needles or other mulches that readily carry fire". Appe°°°°°'meweLEcaae°°°cE The Standards don't prohibit mulch altogether, just certain types. Therefore, Soil Note 1.12 is incorrect. Please revise to be Fire-Resialant LanEacapi,g guidelines. saaoaoanEn. 'Use mulches ro conserve molsfure antl .MYlN can Deo Imvganic�Uogiwl1use qne Dark,NicH layers°/ wnenaatllaanro�ermalc°eel°alreatllN — :, m.,0°� consistent with the language above. TI,3trBJ nY proM1lblt mulcM1 alro Pwrgeowr ,na a guage=iam.oe ,. e � ,n °aup g We have revised this note to provide mini-nugget bark mulch where applicable. L5.00 - Planting Plan (9) , Page: L5.00 - Planting Plan Author: rickma These three ground covers are low water-use plants as per the GreenCo list. There are numerous instances where these ground '_. _ _ -d- - Date: 12/11/2018 8:13:57 AM covers are depicted in medium-water hydrozones/valves. Review and revise all plans accordingly. File Name: PlanSetEP. .Landscape.905 ChatfieldRd.2018.04.pdf Galium odoratum is rated Low in the GreenCo list. Other sources provide a variety of ratings, from xeriscape (Alameda) ... to Medium (Little Valley, High Country Gardens). In our observation in the field, it thrives in low to medium garden - = -_= conditions. "� Hosta 'Honeybells' is rated Medium in the GreenCo list. This assessment is consistent with what we have observed in Ai mow, ._ , =� w- I rs.0o the field, and we have only described its use here in areas with Medium water use irrigation. While 'Waterperry Blue' is not specifically called out on the GreenCo list, other cultivated low-grow Veronicas are all listed as Low water use. Little Valley supports this assessment, but other sources, such as Tagawa Gardens and Tree Farm describe at as-preferrang-Medium-conditions--We-have-observed that Veraranca-low gKou.ndcovOrsdo-well-in low-to-- :: :: :/ Page: L5.00 - Planting Planmedium arden condition . : ' � Author: rickma veonies ar a medium wafer pants mixed with an under-story of low water ground-covers in the same hydrozone. (A14). Revise to Illll,.' �`I°^. Date: 12/11/2018 8:14:38 AM have plants of similar water needs in same hydrozone. : tAAq�E r" File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf This zone is will be irrigated as 'Medium' water use. The groundcover planned for this bed is adaptable, so it will perform �: ;a ,, well in this medium zone, likely without using as much water as a 'Medium' water use groundcover. 11.=e w Page: L5.00 : rick - Planting Plan The CityForester requires that there be mulch only (no planting) out to the driplines under existingtrees. Adjust plans and water � Author: rickma q p � Date: 12/10/2018 3:09:58 PM budget accordingly. File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf Per our conversations with COA Parks, existing condition will be maintained under existing trees to the extent possible. The City planForesterrequires dnphat h tseruire r Mulch will be used in all locations where this is not possible. only(no planting)out to the driplines under existing trees.Adjust plans and water budget - accordingly. *25 .3 RECEIVED 02/14/2019 ASPEN BUILDING DEPARTMENT \ PT ENTRY Page: L5.00 - Planting Plan Geranium 'Johnson's Blue' and Brunnera macrophyla are low water plants depicted here in a medium irrigation (A5) and hydrozone. z TERRACE Author: rickma Date: 12/10/2018 3:47:05 PM Revise plans accordingly. ; Geranium 'Johnson's Blue'andBrunnera File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf According to the GreenCo plant list, Geranium cultivars are rated 'Medium' in the West Slope column. Little Valley and . macrophyla are low water 'plants depicted here ina Alameda as well as observations in the field support this rating, while High Country Gardens describe its suitability for medium irrigation eo hydrozone.Revd&p� xeric conditions, and American Meadows describes a range of moisture preference from Low to Medium. aR s�o accordingly. 'E According to the GreenCo plant list, Brunnera is rated 'Low', though alternate sources (Little Valley Nursery, American Otiort Meadows, and Alameda) and observation in the field indicate that it functions well with medium water as well. ►::.-�;}: Page: L5.00 - Planting Plan Author: rickma NW is keyed out as a seed mix in legend, yet depicted here as #1 container plantings. Please clarify. Date: 12/10/2018 3:20:20 PM NW is a callout to the seed hatch, not intended to indicate #1 container plantings. Annotation has been corrected. NW is keyed out as a File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf seed mix in legend, yet depicted here as #1 container plantings.Please - clarify. 1 __ a ---= r^ _ e L` Page: L5.00 - Planting Plan These two Alliums are not specifically listed on the GreenCo list. They are depicted here in medium water zones. The Allium species = = _ Author: rickma that are on the list are categorized as low water-use plants. Please provide more information on these two species and/or R -__it* _ , .._ 7 Date: 12/10/2018 3:50:47 PM File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf justification for locating them in medium zones. =__ __ - The Alliums (BULBS: AS/AP) are located in low water use areas only. Unlike the cultivated Allium used in the plan, _� = f e:a. Alliums listed in GreenCo are native plants, well-adapted to the dry conditions of Colorado. American Meadows lists a. - - - == the more ornamental Alliums as prefering average soil moisture conditions. We have observed these bulbs thriving in t - - -- ""p.., dry beds as well as average garden beds, just not wet beds. These Alliums will not receive their own drip head, since IV w- ..t,o they usually do not need much supplemental irrigation during dormancy. :; :.:.%r. . - T. — t— —sur'• Page: L5.00 - Planting Plan Author: rickma The City Forester requires that there be mulch only (no planting) out to the driplines under existing trees. Adjust plans and water „+ Date: 12/10/2018 3:09:11 PM budget accordingly. ;'a'.'.'*'{ - { {'{'+' ' as File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf Per our conversations with COA Parks, existing condition will be maintained under existing trees to the extent possible. The City Forester requires that there be mulch only(no planting)out to the II++ �� Mulch will be used in all locations where this is not possible. driplines under existing trees.Adjust plans and water budget accordingly. RECEIVED 02/14/2019 ASPEN BUILDING DEPARTMENT 4 Page: L5.00 - Planting Plan - =lll? i". Stachys sp. is typically a low water use plant, although this species not specifically listed in the GreenCo list. Provide more I ,,- � �� - Author: rickma _7� ` ;g, Date: 12/11/2018 8:14:27 AM information on this species and why it should be in a medium hydrozone. Stachys ateruseplant alholughths ;r�5 1. File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf The more commonly used Stachys (byzantia--the white furry one) is low water use, but the Stachys used here (monnieri p esnotspecfica9ylist d f > `4 'Hummelo') is a different variety. Little Valley Wholesale Nursery indicates that the Hummelo cultivar has a 'Medium' J n the GreenCo list.Provide �.g � mation more sandwhyitnu,s . water requirement, though I would guess it is adapatable from the companions with which I have seen it planted in town. sprees and why it should be °iet n a medium hydrozone. Z Y n 19.E Am , , : 25' Page: L5.00 - Planting Plan •2y ` Author: rickma Johnson's Blue Geranium is a low water use plant depicted here in a medium hydrozone and valve (A5). Revise plans accordingly. •z Date: 12/11/2018 8:14:14 AM According to the GreenCo plant list, Geranium cultivars are rated 'Medium' by one vote in the West Slope column. Little File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf Valley and Alameda as well as observations in the field support this rating, while High Country Gardens describe its Johnson's Blue Gera ium Is low ateruseplantd pitted -- suitability for xeric conditions, and American Meadows describes a range of moisture preference from Low to Medium. here h a medium hydr zone I and vilve(A5).Revise�lans We have observed this plant to be adaptable to a range of soil conditions. accordingly.\ pOVEWAY \ L5.10 - Hydrozone Diagram (2) OM _ 63 Page: L5.10 - Hydrozone Diagram 00 Odp V"' >so Author: rickma Irrigated areas (sq. ft.) within the public ROW are not included in the Average Irrigation Water Need calculations. Please review the Qb ON, 090 63 Cm OA 3n calculations and revise accordingly. abb MO a" a° Date: 12/12/2018 9:02:29 AM w��-- Irrigated areas(sq.ft.)within the File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf Irrigated areas in the public ROW (zones 3,6,25,26) are included in the calculations. We have reviewed and revised the °"'�"` public ROW are not included in the numbers after addressing the other WELS comments in this document, so the numbers should be consistent. 3 Average Irrigation Water Need calculations.Please review the calculations and revise accordingly. -- M Page: L5.10 - Hydrozone Diagram _r Author: rickma - - Date: 12/12/2018 9:03:42 AM Even though it is true that this application doesn't have to strictly comply with the 7.5 gal/sq.ft./season standard because WELS is in == :i File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf a pilot phase, there are design techniques and plant selection strategies available that would result in a reduction in overall water usage. Everyeffort should be made to comply with the Standards at this time. g pY crzt Understood. meaP,w=da°a=°=rr RECEIVED 02/14/2019 ASPEN BUILDING DEPARTMENT L7.00 - Details (1) AL- Page: L7.00 - Details Mulch specifications need to comply with WELS Section 5.3 (4", et.al.) Author: rickma ■ = _ Date: 12/11/2018 8:12:57 AM The details have been revised to comply with WELS Section 5.3, though more drought tolerant and native File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf e�.__.__ e., ___ p p species may prefer less mulch depth than described in 5.3. L8.00 - Irrigation Notes & Schedule (1) R Me ml Page: L8.00 - Irrigation Notes & Schedule A lockable master valve is required, as per WES Section 6.1.3 — 83e Author: rickma R,a =" 0% Date: 12/11/2018 8:00:22 AM This has been incorporated; re L8.40, detail 20. o RmelRo - ' ' File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf CLASE A lockable master RAM 00, valve is required,as BRO �a-1�-P par3 Section N/5 RAIN BF. Q' RNN BIRO LSel- 'F RMN BIRO FD 10, L8.30 - Irrigation Details (1) o � Page: L8.30 - Irrigation Details o • Author: rickma Please provide justification for the number of emitters per tree and reasoning behind the differences in mulched locations versus Date: 12/12/2018 9:42:31 AM native seed locations, when even shrubs and trees in native seed locations will likely be mulched above their root balls. - a File Name: PlanSet.Landscape.905 ChatfieldRd.2018.04.pdf The irrigation designer provides a different number of emitters for mulched areas vs native because the mulch helps to svx Pleaseprovideing behind for the number of emitters per covrucrw s. Vee and reasoning behind the dtlrerences in mulched aocalions versus native seed locations,when even shrubs hold in the water, so less is required in those locations. Within driplines where the existing condition is to remain in an tl trees in native seetl locations will likely be mulchetl above their tool balls. intact native area, for example, 'native' emitter count would be used. Within driplines where a mulch condition will exist (most situations), the contractor will use the 'mulched' emitter count. RECEIVED 02/14/2019 ASPEN BUILDING DEPARTMENT