Urban Drainage and Flood Control District Maintenance Eligibility Program Status of Projects by Local Government Aurora

Urban Drainage and Flood Control District Maintenance Eligibility Program Status of Projects by Local Government Aurora 10-Sep-2015 BEAR GULCH 1166 Aurora Park East 5/9/1991 29-2S-64W 5/13/1991 1165 Aurora Park East 5/9/1991 30-2S-64W 5/13/1991 1062 Aurora Park East 5/9/1991 30-2S-64W 5/13/1991 CROOKED RUN 1200 CenterPort International 10/14/1991 22,27-3S-64W 10/16/1991 1237 CenterPort International 4/16/1992 27-3S-64W 4/16/1992 FIRST CREEK 3165 Aurora Commerce Center 11/24/2004 1/20/2006 36-3S-66W 1040+00 1062+00 First Creek OSP 10/23/03: Drainage study. 7/28/04; plans & 11/24/04; plans & 9/28/05; plans & 1/20/2006 294 Century 21 8/26/1986 36-3S-66W 1065+00 1087+50 First Creek MP 8/27/1986 3320 E-470/I-70 Fly-by Interchange 6/16/2005 6/16/2005 36-3S-66W 3/16/05; plans and 6/16/05; plans & 6/16/2005 3104 Eastgate Subdivision Filing 1 2/13/2013 7/28/2015 36-3S-66W 1062+30 1080+00 First Creek OSP (1990) 2/25/03: FDP. 5/10/04; const plans & Concept conflicts with E-470 interchange plans. 4/4/05; plans & rpt, still lacks adequate coordination with E- 470. 5/19/08; plans & re-submittal, 2/1; Design approval issued on 7/1/13 plans because design approval letter never issued. Design changes for drop DS of Smith Rd submitted Sept 2014. AKA: First Creek Channelization_Century 21 Filing 1. 7/28/2015 3382 Highpoint Filing 1 Blue Grama 1/10/2006 7/11/2006 2/12/2008 10-3S-66W Pond 801 and Blue Grama Draw. 1/10/06; plans & rpt, pond from J3 and channel from SA Miro. 4/17/06: plans & 2/12/2008 3496 Highpoint Filings 3 & 4 Phase 2 Blue Grama 6/19/2008 6/19/2008 10-3S-66W Two roadway crossings to complete the channel. 6/19/2008 3677 Majestic Commerce Center (aka Auro several 3/25/2013 26-3S-66W Concept grading plan for Picadilly Pond 4/11/2013 954 Nevin/Ringsby 6/7/1990 36-3S-66W 1040+00 1062+00 First Creek MP (1977) 6/7/1990 3212 Prologis Park 4/14/2004 31-3S-65W 4/14/2004 2376 Single Tree @ DIA Blue Grama Draw 12/7/1998 10-3S-66W Revision to First Creek Need drainage submittal OSP 12/7/1998 FIRST CREEK TRIB T 186 Green Valley Ranch East Several tribs. 7/23/1985 18,19,29-3S- 65W; 24-3S- 66W 1

3025 3026 3027 3028 3029 187 Green Valley Ranch East 8/29/2002 24-3S-66W 78+50 151+00 First Creek MP (1977) 8/29/02: FDP Green Valley Ranch East 8/29/2002 30-3S-65W 170+00 183+00 First Creek MP (1977) 8/29/02: FDP Green Valley Ranch East 8/29/2002 30-3S-65W 216+00 236+75 First Creek MP (1977) 8/29/02: FDP Green Valley Ranch East 8/29/2002 19-3S-65W 183+00 216+00 First Creek MP (1977) 8/29/02: FDP Green Valley Ranch East 8/29/2002 29-3S-65W 236+75 303+00 First Creek MP (1977) 8/29/02: FDP Green Valley Ranch East 7/23/1985 19,29,30-3S- 78+50 303+00 First Creek MP Tributary to First Creek 65W; 24-3S- 66W 9/16/2002 9/16/2002 9/16/2002 9/16/2002 9/16/2002 3191 Windler Homestead tributary 6/10/2004 6/10/2004 24-3S-66W 2/11/04: Major drainageway in a box culvert. 4/19/04: now open channel but no drainage report. 6/10/04; plans & rpt, need MDP approval. 6/10/2004 GRANBY DITCH 26 Regency 7/16/1985 7/16/1985 5-4S-66W 124+75 129+00 Granby/Sable Floodplain dedicated to city... 4/24/1986 HENRY DAVID DRAW 1198 CenterPort International 4/14/1992 16-3S-64W 4/16/1992 1197 CenterPort International 4/14/1992 15,22-3S-64W 4/16/1992 IRONDALE GULCH 3038 Bolling Drive Tributary Bolling Drive 10/1/2002 22-3S-66W 380+00 438+00 Irondale OSP 10/1/02: Preliminary design report. 10/1/2002 3037 3279 3081 3367 Bolling Drive Tributary Bolling Drive 10/1/2002 21-3S-66W 335+00 380+00 Irondale OSP 10/1/02: Preliminary design report. Gateway Park Bolling Drive Tributary Bolling Drive 3/17/2005 3/17/2005 21-3S-66W 350+00 380+00 Irondale OSP 10/29/04; plans & 3/2/05; plans & Gateway Park East Pond UP-C Montbello 5/28/2002 5/28/2002 21-3S-66W 363+00 370+00 Irondale OSP Part of the MP Upland Pond system. 3/7/02; plans & 5/28/02; plans & rpt, see letter this date. Gateway Park East Ponds UP-B1 & B Montbello 9/6/2005 9/6/2005 21-3S-66W 363+00 370+00 Irondale OSP Part of the MP Upland Pond system. 9/6/05; plans & rpt, see letter this date. 10/1/2002 3/17/2005 5/28/2002 9/8/2005 777 Majestic Commerce Center (aka Auro several 4/2/1981 26-3S-66W 1258 1259 UP Realty Co. Bolling Drive 6/10/1992 21-3S-66W 350+00 380+00 Irondale Gulch OSP UP Realty Co. Bolling Drive 6/10/1992 27-3S-66W 396+00 435+00 Irondale Gulch OSP 7/1/1992 7/1/1992 786 Upland Industries 8/8/1980 20,21,27-3S- Comp plan amendment only. 66W MONTBELLO DRAINAGE 3760 Gateway Park IV East Filing 19 Bolling Drive Tributa 10/22/2014 21,0,0-3S- 10/22/2014: Single outfall to Bolling 66W; 0,0,0-- Drive Trib; returned comments 10/22/2014 1257 UP Realty Co. 6/10/1992 20,21-3S-66W 350+00 385+00 Irondale Gulch OSP 7/1/1992 NEWCOMB GULCH 1199 CenterPort International 4/14/1992 15,22-3S-64W 4/16/1992 SABLE DITCH 799 Mid-America 9/26/1983 32-3S-66W 61+00 66+50 Sable Ditch Relys on "existing pipe" - installation history not known as this is written. 2

194 794 795 652 Sable Ditch Channel 6/5/1985 31,32-3S-66W 6+25 95+50 Granby/Sable Channel built by Aurora; design never submitted; horseback review indicates potential problems. Sable Ditch Revision 3/10/1982 3/10/1982 3/10/1982 3/10/1982 31-3S-66W 26+75 59+00 Sable Ditch Constructed by Aurora w/o District approval. Sable Ditch Revision 3/10/1982 3/10/1982 3/10/1982 3/10/1982 32-3S-66W 66+50 95+50 Sable Ditch Constructed by Aurora w/o District approval. Toll Gate Creek Channelization 6/15/1987 6/15/1987 31-3S-66W 0+00 1+50 Granby & Sable Ditch Sable Ditch confluence area contained in Toll Gate design. 9/9/1987 SAND CREEK 3507 Aurora ICE Processing Center Baranmoor Ditch 9/5/2008 11/24/2008 4/16/2009 7/22/2013 26-3S-67W 1+00 21+00 Channel armoring, outfall, grouted boulder spillway and drop structure. 7/22/2013 3791 Baranmor Ditch Reach 4-5 Baranmoor Ditch 4/13/2015 25-3S-67W Channel improvements including 3 culverts and numerous drop structures 2/3/2015: Returned comments on final drawings 4/13/2015: Design Approved 4/13/2015 3666 Baranmor Ditch Reach 6 Baranmoor Ditch 1/16/2013 26-3S-67W Channel improvements, comm 1/16/13 3/4/2013 88 183 801 782 Buckley Rd. Bridge 5/6/1987 5/6/1987 5/25/1988 32,33-3S-66W 567+00 587+00 Sand Creek MP Flood control elements only. Chambers Rd. Bridge Widening 6/27/1984 6/27/1984 31,32-3S-66W 480+00 489+00 Sand Creek MBT #1 3/28/1984 26-3S-67W 349+50 378+50 Sand Creek Stearns-Roger 5/23/1980 32-3S-66W 535+00 548+50 Sand Creek Rezoning only. 6/16/1988 787 Upland Industries 8/8/1980 28,29-3S-66W Comp plan amendment only. SECOND CREEK 3406 Sagebrush Farm 6/8/2006 17-3S-65W 875+00 889+50 Second Cr 6/8/06: Drainage report. 6/22/2006 SOUTH PLATTE RIVER 807 Twenty-third Ave. Storm Sewer 23rd Ave. Storm Sew 6/19/1985 6/19/1985 34-3S-67W Only part considered was the outlet to Westerly Creek at Sta. 10+50 in Westerly Creek (1983) TOLL GATE CREEK 1049 Potomac St. Bridge Pier Protection 2/5/1990 3/15/1990 6/4/1991 8/5/1992 31-3S-66W 8/5/1992 3749 Toll Gate Channel Repairs 10/23/2014 36,0,0-3S- 67W; 31,0,0-3S-66W 20+00 54+00 2013 Toll Gate Creek 8/22/2014: Channel Bank Repairs in 3 locations; plns had issuficient information to review 10/23/2014: Approved Design 10/23/2014 WEST FORK SECOND CREEK 3826 High Point at DIA-West Fork Second 6/16/2015 2,3,10-3S- 66W; 11,0,0-3S-66W Arch culvert improvement and ped x-ing at 64th Ave and 1200 ft of channel U/S and D/S of 64th. Returned comments: 6/16/2015 6/16/2015 3401 Highpoint Filing 2, Phase I 6/2/2006 6/2/2006 11/26/2008 3-3S-66W Second Creek OSP West Fork Second Creek channelization. 4/17/06; plans & 6/2/06; plans, email comments. Repair list. 11/26/2008 3

3391 Highpoint Filings 3 & 4, Phase 1 6/1/2006 11/12/2006 3-3S-66W 85+00 175+00 Second Creek OSP West Fork Second Creek channelization. 4/17/06; plans & 6/1/06; plans & 10/10/06; plans & 11/12/06; plans & 11/12/2006 1033 International Center 2/5/1990 3-3S-66W 2/19/1990 WESTERLY CREEK 3423 Stapleton Aurora Filing 1 11/12/2006 11/12/2006 34-3S-67W Overflow channel, see also 3213. 11/12/06; plans & 11/12/2006 3424 Stapleton Aurora Filing 2 11/12/2006 11/12/2006 35-3S-67W Overflow channel, see also 3423. 11/12/06; plans & 11/12/2006 3213 Stapleton Filing 11 4/14/2004 5/10/2004 27-3S-67W Overflow channel & drops, see also 3193 5/10/2004 Legend Concept, design or construction approved as of the given date. Concept, design or construction reviewed but not approved as of the given date. Concept, design, construction or final eligibility not yet considered. Project not eligible for District maintenance assistance as of the given date. Project eligible for District maintenance assistance as of the given date. 4

Urban Drainage and Flood Control District Maintenance Eligibility Program Status of Projects by Local Government Aurora 10-Sep-2015 ANTELOPE CREEK 3434 King's Point North Filing 4 6/14/2007 2/13/2008 35-5S-66W Piney Creek Tribs Floodplain preservation, one outfall & one roadway crossing. 9/12/06; plans & 1/9/07; plans & 6/14/07; plans & 10/10/07; plans & 3/25/2008 2987 1459 King's Point North Filing No. 2 4/19/2004 6/7/2005 35-5S-66W 79+50 121+00 Piney Creek Tribs 6/10/02: Site plan & plat. 4/19/04: CSP and plat. 10/25/04; plans & 12/1/04; plans & 1/12/05; plans & 3/9/05; plans & 4/21/05; plans & Ridgemoor 3/23/1994 35-5S-66W 86+00 154+00 Piney Creek Tribs. GDP Amendment 6/7/2005 3/23/1994 CHERRY CREEK 850 Bramalea Regional Mall 11/10/1987 29-5S-66W 942+00 959+00 Cherry Creek FPI 11/13/1987 3566 3404 3405 Cherry Ck Low Water cross S of Arap 11/17/2010 2/1/2011 30-5S-66W 910+00 970+00 Cherry Creek 2003 Low water crossing at soccer complex Cornerstar 8/16/2007 8/16/2007 1/29/2009 29-5S-66W 910+00 970+00 Cherry Creek 5/23/06: GDP. Bank revetment. 2003 Cornerstar 8/16/2007 8/16/2007 1/29/2009 30-5S-66W 910+00 970+00 Cherry Creek 5/23/06: GDP. Bank revetment. 2003 2/1/2011 1/29/2009 1/29/2009 3461 Cornerstar F (Constructed Wetla 8/16/2007 8/16/2007 1/29/2009 30-5S-66W 5/23/06: GDP. 1/29/2009 3460 Cornerstar E (Foxfield Outfall) 8/16/2007 8/16/2007 1/29/2009 29-5S-66W 5/23/06: GDP. 1/29/2009 2332 Hampden Town Center Four Square Mile Ar 9/25/1998 3-5S-67W 10/6/1998 3284 King's Point North Filing 1 tributary 9/7/2005 3/1/2006 35-5S-66W 4/20/04; prelim drainage 10/21/04; final drainage rpt & plans, substandard drainage concepts. 9/7/05; plans & rpt, concept now ok. 1/10/06; plans & 3/1/2006 2421 Pioneer Hills un-named 4/8/1999 18-5S-66W 4/8/99: GDP/PDP submittal needs drainage study to evaluate eligibility. 4/8/1999 927 926 Quincy Ave. Drainage Outfall System Reach 4 4/12/1988 8/2/1988 10/24/1989 12-5S-67W 40+00 53+00 Quincy Drainage OSP Quincy Ave.Drainage Outfall System Quincy Drainage 4/12/1988 8/2/1988 10/24/1989 12-5S-67W 1+00 31+00 Quincy Drainage OSP 10/30/1989 10/30/1989 1207 Quincy Convenience Center Quincy Drain 11/6/1991 6-6S-66W Quincy Drain/Shop Detention pond lcoation in danger. Creek OSP 11/11/1991 1465 Ridgemoor 3/23/1994 33,34-5S-66W GDP Amendment. 4/26/1994 946 Shop Creek Shop Creek 6/28/1988 6/28/1988 7-5S-66W; 12-3+00 34+00 Shop Creek OSP 5S-67W 6/28/1988 1073 Valley Club Pointe 9/15/1995 20-5S-66W Formerly Masters @ Valley Country Club in Arapahoe Co. 10/2/1995 1

COAL CREEK (ARAPCO) 3052 Eastern Hills 10/26/2007 10/26/2007 20-4S-65W 180+00 263+00 Upper Sand Creek OSP 10/30/02: Drainage report. Coal Creek stabilization plans and Flg 1 & 2 outfalls. 10/25/04; plans & 6/1/06; plans. 2/14/07; plans & FP 10/26/07; plans & 10/26/2007 15 3054 3053 3241 Eastern Hills 2/17/1986 17,20,21-4S- 920+00 1017+00 Sand Creek Leaving FP open. 65W Eastern Hills Conn Draw 20-4S-65W 0+00 20+00 Upper Sand Creek OSP 10/30/02: Drainage report. Eastern Hills Fox Tail Run 20-4S-65W 0+00 7+00 Upper Sand Creek OSP 10/30/02: Drainage report. Eastern Hills Filing 5 7/28/2004 7/28/2004 28-4S-65W 263+00 300+00 Upper Sand Creek OSP 3/4/1986 8/3/2004 558 Eastern Hills South 12/16/1986 28-4S-65W Outside District. 1/9/1987 EAST TOLL GATE CREEK 797 Alamosa 4/4/1983 8-4S-66W Proposed park and open space. 3369 Buckley AFB Housing Project 9/20/2005 9/20/2005 9-4S-66W Two storm sewer outsfalls. 9/20/2005 557 Buckley/State Land Board 12/16/1986 9-4S-66W 1/9/1987 184 Columbia Creek Columbia Creek 5/21/1985 5/21/1985 8-4S-66W Drainage plan has many problems... 560 Creekside 12/24/1986 9-4S-66W 1/9/1987 753 Dueck 1/4/1983 8-4S-66W Rezoning only. SE 1/4 10/9/1987 185 Golf Course on E. Toll Gate 5/21/1985 5/21/1985 5/21/1985 8-4S-66W Aurora Aurora owned golf course; project has many problems... 789 Heather Ridge Village #2 4/3/1981 22-4S-66W 792 Heather Ridge Village Indus. Sub. 9/28/1981 22-4S-66W 791 Heather Ridge Village Indus. Sub. 9/28/1981 22-4S-66W 189 Highline Siphon @ E. Toll Gate 2/20/1985 2/20/1985 2/20/1985 8-4S-66W Project under construction; design not submitted for review and approval; design problems suspected... 943 Jewell Property 6/20/1988 22-4S-66W 6/24/1988 776 Kingsborough #8 2/8/1980 22-4S-66W 784 Kingsborough Filing #8 Side Creek 6/20/1980 22-4S-66W Apparently built but eligibility never requested. 555 Orchard Crossing 19-5S-65W 1/9/1987 16 Panorama Heights Side Creek 2/3/1986 22-4S-66W Request for after-the-fact elegibility. 3/4/1986 191 Panorama Heights Side Creek 10/25/1983 10/25/1983 22-4S-66W 3045 Pomeroy 10/8/2002 18-5S-65W 365+00 371+00 Upper Toll Gate Creek 10/8/02: Framework. OSP 10/8/2002 19 Quail Run Side Creek 2/3/1986 21-4S-66W Request for after-the-fact eligibility. 3/4/1986 778 Sienna Side Creek 11/21/1980 11/21/1980 16-4S-66W 2859 Sleepy Hollow 11/29/2001 22-4S-66W 11/29/01: PDP & replat. 11/28/2001 2

3021 Sorrel Ranch Filing No. 1 9/5/2003 11/13/2003 2/26/2007 7/19/2007 18-5S-65W 342+00 365+00 Upper Toll Gate Creek Basin OSP 9/13/02: Contextual Site Plan. 4/9/03; plans & Question channelized approach. 9/5/03; plans & 10/28/03; plans & 7/19/2007 802 Toll Gate Creek Condominiums 3/14/1983 8-4S-66W 196 Toll Gate Creek Condos 1/31/1983 8-4S-66W 805 Toll Gate Villages 7/22/1984 16,17-4S-66W 804 Toll Gate Villages 7/22/1984 16-4S-66W 806 Toll Gate Villages 7/22/1984 16-4S-66W 781 Tollgate Condos 7/10/1980 16-4S-66W 3243 3242 3301 3006 Tollgate Crossing Filing 2 7/28/2004 7/28/2004 7-5S-65W 276+00 300+00 Upper Toll Gate OSP 7/28/04; plans & Tollgate Crossing Filing 6 1/5/2005 5/11/2005 7-5S-65W 276+00 300+00 Upper Toll Gate OSP 7/28/04; plans & 10/25/04; plans & 1/5/05; plans & 3/9/05; plans & Tollgate Crossing Filing 6 Gun Club 12/17/2004 5/11/2005 7-5S-65W 276+00 300+00 Upper Toll Gate OSP One outfall. 12/17/04; plans & 3/8/05; plans & Tollgate Crossing Phase 1 7/23/2002 4/10/2003 3/9/2006 8/20/2009 7-5S-65W 270+00 300+00 Upper Toll Gate OSP See also 3114 & 3115. 7/23/02: Framework amendment. Crossing at Belleview Ave. 12/4/02; plans & 2/20/03; plans & 3/11/03; plans & 11/26/08; repair list. 8/3/2004 5/11/2005 5/11/2005 8/20/2009 775 Tollgate Village #14 4/18/1980 16-4S-66W 2420 Uravan Channel at Louisiana Street Uravan Channel 12/1/1998 12/1/1998 3/25/1999 3/25/1999 21-4S-66W 3/25/1999 3586 Xcel Smoky Hill Substation Expansio 3/23/2011 6/9/2011 19-5S-65W one outfall 12/1/2011 FIRST CREEK 3272 Adonea Filing 1 T7 5/3/2005 5/26/2005 5/10/2007 11/19/2009 8-4S-65W 8+00 23+00 First Creek OSP 4/28/03: Framework. 10/18/04; plans & 2/8/05; plans & 5/3/05; plans & Drop structures. 11/19/2009 3347 3512 Adonea Filing 3, Phase 1 T7 5/26/2005 10/3/2005 5/10/2007 11/19/2009 8-4S-65W 23+00 28+50 First Creek OSP 5/26/05; plans & 9/1/05; plans & Drop structures. Repair list. Adonea Filing 3, Phase 2 T7 5/26/2005 10/3/2005 8-4S-65W 28+50 38+00 First Creek OSP 5/26/05; plans & 9/1/05; plans & Phase 2 of the project.see also 3347.Remove temp check structures d/s of F.1 for final. 11/19/2009 12/11/2008 461 Aurora Airpark un-named (2) 9/3/1986 3,4,10-4S-65W Outside District... 10/6/1986 3055 3056 3057 3058 Eastern Hills Main Channel 15-4S-65W 0+00 36+50 First Creek OSP 10/30/02: Drainage report. Eastern Hills 15-4S-65W 1401+00 1468+00 First Creek OSP 10/30/02: Drainage report. Eastern Hills T7.1 16-4S-65W 10+00 35+00 First Creek OSP 10/30/02: Drainage report. Eastern Hills T7 16-4S-65W 124+50 131+50 First Creek OSP 10/30/02: Drainage report. 5 Eastern Hills 2/17/1986 15-4S-65W Upstream from MP study limits. Aurora annexation. 3/3/1986 3059 Eastern Hills T7 21-4S-65W 131+50 150+00 First Creek OSP 10/30/02: Drainage report. 956 Eastview Village 8/10/1988 9-4S-65W 8/12/1988 3

468 Gun Club Farms 10/22/1986 6-4S-65W 1113+50 1125+50 First Creek MP Proposed annexation 10/29/1986 39 Purview 3/18/1986 10-4S-65W Some open floodplain and channelization; currently (3/86) outside District... 4/24/1986 3067 3068 Sand Creek Ranch T 7 12/3/2002 16-4S-65W 65+00 125+00 First Creek OSP 12/3/02: FDP. No drainage study. Sand Creek Ranch T 7.1 12/3/2002 16-4S-65W 0+00 10+00 First Creek OSP 12/3/02: FDP. No drainage study. 12/3/2002 12/3/2002 3371 Sand Creek Ranch Filing 1 T 7 1/24/2006 1/24/2006 16-4S-65W First Creek OSP 12/3/02: FDP. No drainage study. 9/28/05; Plans & 1/24/06; plans & 1/24/2006 3372 Sand Creek Ranch Filing 4 T 7 9/28/2005 9/28/2005 16-4S-65W First Creek OSP 12/3/02: FDP. No drainage study. 9/28/05; Plans & 10/6/2005 3373 Sand Creek Ranch Filing 9 T 7 9/28/2005 2/13/2006 16-4S-65W First Creek OSP 12/3/02: FDP. No drainage study. 9/28/05; Plans & 2/13/06; plans & 2/13/2006 556 Smith Road Farms un-named 12/16/1986 9-4S-65W Outside District 1/9/1987 3302 3303 3328 3070 3183 Starfall T-7 1/3/2005 9-4S-65W 45+00 66+00 First Creek OSP 1/3/05: FDP. 4/11/05: Drainage report. Same concept. Starfall 1/3/2005 9-4S-65W 1330+00 1340+00 First Creek OSP 1/3/05: FDP. 4/11/05: changed from open space to channel. Sun Meadow 4/13/2005 9-3S-65W 1286+00 1330+00 First Creek OSP 4/13/05: Propose channelization but design Q unknown. Traditions T-4 12/12/2002 8-4S-65W 52+00 109+00 First Creek OSP 12/12/02: FDP Trails at First Creek 12/22/2003 15-4S-65W 1366+30 1402+50 First Creek OSP 12/22/03: Master Drainage report. 4/11/2005 4/11/2005 4/18/2005 12/12/2002 12/22/2003 GRANBY DITCH 1631 Buckley Specialty Center 8/9/2000 8-4S-66W 171+00 177+00 Granby Ditch 5/22/95: not approved. 8/9/00: plat OK. 8/9/2000 3160 Monterey Point 5/19/2003 8/20/2003 6-4S-66W 68+00 84+00 Granby/Sable 3/12/03; plans & 5/19/03; plans & 8/22/2003 78 Sixth Ave. Detention Pond 5/2/1986 8-4S-66W Temp. Pond. Maint. Eligibility not requested. 6/10/1986 195 1980 Sunlite 2/15/1984 5-4S-66W 135+00 138+25 Granby/Sable Super Kmart Center 8/17/1995 6-4S-66W 68+30 84+00 Granby and Sable Box culvert under parking lot. 8/17/1995 IRONDALE GULCH 3642 Bolling Channel completion SCMD Bolling Drive 7/19/2012 9/11/2012 9/5/2013 21-3S-66W Irondale OSP connects to RTD East Line, 4 drops, see 3641, comments 7/19/12, Sand Creek Metro Distr, folder also has Denver files 9/5/2013 MEADOWOOD DRAIN 639 Horseshoe Park 8/3/1987 8/3/1987 8/31/1990 8/31/1990 29-4S-66W WTGC to Iliff. Low flow channel only. No wetlands. 8/31/1990 MURPHY CREEK 188 Gun Club Partnership 8/2/1985 19,30-4S- 117+50 236+00 Piney Creek 65W; 24-4S- 66W 1600 Murphy Creek Harvest Gulch 4/12/1995 30-4S-65W 0+00 27+00 Upper Sand Creek OSP ID #'s 1596-1600 4/13/1995 4

1596 1599 1597 1598 Murphy Creek 4/12/1994 11/12/1997 19,30-4S- 123+50 244+00 Upper Sand Creek OSP ID #'s 1596-1600 9/28/98: endorsed 65W; 24-4S- CLOMR submittal for golf course 66W Murphy Creek Alexandra Gulch 4/12/1995 30-4S-65W 0+00 13+40 Upper Sand Creek OSP ID #'s 1596-1600 Murphy Creek Murphy Creek East 4/12/1995 11/12/1997 19-4S-65W; 0+00 67+50 Upper Sand Creek OSP ID #'s 1596-1600 24-4S-66W Murphy Creek Gun Club Creek 4/12/1995 19,30-4S-65W 0+00 83+00 Upper Sand Creek OSP ID #'s 1596-1600 10/6/1998 4/13/1995 11/12/1997 4/13/1995 3370 Murphy Creek Metropolitan District 9/28/2005 10/11/2005 8/28/2007 8/28/2007 30-5S-66W Upper Sand Creek OSP Stream stabilization and roadway crossings. 8/28/2007 3395 Murphy Creek North 5/3/2006 13-4S-66W 78+00 117+00 Piney Cr (1975) 5/3/06: FDP. Concept OK. FP wrong. 5/3/2006 3611 Murphy Creek Subdivision 1, lot 1, bl 12/15/2011 24-4S-66W Upper Sand Creek OSP Stream stabilization and one outfall 12/15/2011 955 3044 2842 3452 Nevin/Ringsby 8/10/1988 13-4S-66W 43+50 117+00 Piney Creek Pomeroy 10/8/2002 18-5S-65W 490+00 496+00 Upper Sand Creek OSP 10/8/02: Framework. Sorrel Ranch 10/22/2001 2/12/2008 2/12/2008 18-5S-65W 466+00 490+00 Sand Creek Basin MP 8/17/00: FDP. 10/22/01: FDP. 10/1/02: Master Drainage Report. Formerly Vistas @ Senac. 10/27/05; plans & 3/16/06 plans & 8/9/06; plans & Southlands Filing 14 5/22/2007 9/20/2007 11/20/2008 20-5S-65W 500+00 523+00 Piney et al. Stream stab and Orchard Road crossing. 5/22/07; plans & Repair list 8/12/1988 10/8/2002 2/12/2008 11/20/2008 747 Sunrise East 10/7/1987 24-4S-66W Annexation & initial zoning. 10/8/1987 3115 3114 Tollgate Crossing Phase 1 7/23/2002 4/10/2003 3/9/2006 8/20/2009 18-5S-65W 432+00 468+00 Upper Sand Creek OSP See also 3006 & 3114. 7/23/02: Framework amendment. 12/4/02; plans & 2/20/03; plans & 3/11/03; plans & Tollgate Crossing Phase 1 7/23/2002 4/10/2003 3/9/2006 8/20/2009 7-5S-65W 380+00 432+00 Upper Sand Creek OSP See also 3006 & 3114. 7/23/02: Framework amendment. 12/4/02; plans & 2/20/03; plans & 3/11/03; plans & 11/26/08 repair list. 8/20/2009 8/20/2009 50 Vistas at Senac 6/2/1986 18-5S-65W Will conform to Aurora master plan 6/10/1986 3066 Wheatlands 11/26/2002 0-- 500+00 523+00 Piney et al. 11/26/02: Contextual Site Plan. 11/25/2002 MUTCHIE CREEK 3103 Butterfield Trails (2) 2/25/2003 0-- 2/24/2003 2871 High Plains Country Club 1/2/2002 10/21/2004 3/23/2006 8/27/2007 33-5S-65W 1/2/02: Framework. 4/21/03: Filing no. 1 no problems. 5/4/04; plans & 10/18/04; plans & Minor revision coordinated thru email. 8/27/07; final repair list issued. 8/27/2007 3273 High Plains Country Club 1/5/2005 1/5/2005 3/23/2006 8/27/2007 33-5S-65W Two CBCs and storm sewers and channel. 10/18/04; plans & 1/4/05; plans & 8/27/07; final repair list issued. 8/27/2007 3393 High Plains Country Club Filing 3 2/15/2006 7/28/2008 7/28/2008 7/28/2008 33-5S-65W One storm sewer outfall to existing GSB drop. 2/15/06; plans. 4/17/06; plans. After-the-fact plan approval, no letter. 7/28/2008 NO NAME CREEK 779 Hickory Ridge 1/25/1980 1/25/1980 28-4S-66W 5

800 Seven Hills 34-4S-66W Started pre-1980 but alot has been done since then. Need to check w/ Aurora 197 Un-named Cr. from Tower Road 7/24/1984 7/24/1984 34-4S-66W West Toll Gate Creek basin... PINEY CREEK 3333 Eagle Bend Filing 9 7/26/2005 7/26/2005 31-5S-66W Two storm sewer outfalls. 4/19/05; plans & 7/26/05; plans, minor comments. 7/26/2005 658 343 Pine Ridge Ranch 9/29/1987 25-5S-66W 319+50 357+00 Piney Creek Zoning and Annexation only. Promontory Park (Pine Pointe) 3/27/1998 30-5S-65W 357+00 365+00 Piney Creek 8/1/86: Initial zoning as Pine Pointe. 3/27/98: GDP. 9/30/1987 3/27/1998 1414 Saddle Rock Golf Club South 12/22/1993 6/22/1995 26-5S-66W 5/22/1997 1413 Saddle Rock Golf Club South 12/22/1993 6/22/1995 25,26-5S-66W 264+00 320+00 Piney Creek 5/22/1997 3530 Saddle Rock Golf Club South F 10 6/12/2009 9/4/2009 25-5S-66W Piney Creek Piney Ck outfall Pond B. 9/4/2009 SABLE DITCH 1309 ATCO Intercept channel 1/5/1993 5-4S-66W 1+00 5+50 Grandby/Sable MP '91 Proposal would affect MP channel. SADDLE ROCK RANCHES GUL 3065 Eagle Bend Gardens 11/25/2002 36-5S-66W 55+00 61+50 Piney Creek Tribs 11/25/02: Detention Pond M shows up on the site plan. Asked for more info. 1/6/1993 11/25/2002 3672 Eagle Bend Gardens Filing 2 4/16/2013 4/22/2013 36-5S-66W Piney Creek Tribs 3/6/13 ( Detention Pond M) comments, Medical Center of Aurora, 4/16 plans, comments 4/22/2013 1415 2358 Saddle Rock Golf Club South 12/22/1993 6/22/1995 25-5S-66W 0+00 55+00 Piney Creek Tributaries 5/22/97: 3/19/98: SP & FP. No const. Drwgs. Still not approved. See also 2358. Saddle Rock Golf Club South Filing 5 12/22/1993 4/2/2004 11/15/2004 25-5S-66W 25+00 55+00 Piney Creek Tributaries See also 1415, 10/28/98: channel plans not approved, checking construction status. Rehab plans for failed original design 3/11/04; plans & 10/28/1998 11/15/2004 SAMPSON GULCH 3178 High Plains Country Club 9/22/2003 9/22/2003 6/23/2008 7/20/2009 33-5S-65W One storm sewer outfall. Project also in Douglas County. 7/20/2009 342 Promontory Park (Pine Pointe) 3/27/1998 30,31-5S-65W 0+00 52+00 Piney Creek Tribs 8/1/86: Initial zoning as Pine Pointe. 3/27/98: GDP. 3/27/1998 35 Stage Run and 3 tribs. 7/14/1986 31,32-5S-65W 7/16/1986 2620 Tallyn's Reach 6/26/2000 6/26/2000 29,32-5S-65W Regional water quality pond, exceeds one square mile limit, therefore ineligible 6/26/2000 3442 3441 3223 Tallyn's Reach Filing 15 Unamed Tributary 6/22/2006 4/2/2007 10/8/2014 10/8/2014 31-5S-65W 10+00 18+00 6/23/04: Site plan & plat. FP in open space with stream stabilization. 6/22/06 plans & 7/6/06; plans & Ties into Wispering Pines project Tallyn's Reach Filing 15 Tallyn's Gulch 6/22/2006 4/2/2007 10/8/2014 10/8/2014 31-5S-65W 10+00 20+00 6/23/04: Site plan & plat. FP in open space with stream stabilization. 6/22/06 plans & 7/6/06; plans & Ties into Wispering Pines project Tallyn's Reach Filing 15 6/22/2006 4/2/2007 10/8/2014 10/8/2014 31-5S-65W 34+00 64+00 Piney Cr Tribs 6/23/04: Site plan & plat. FP in open space with stream stabilization. 6/22/06 plans & 7/6/06; plans & Ties into Wispering Pines project. 10/8/2014 10/8/2014 10/8/2014 6

3449 Tallyn's Reach Filing 15 Wetland Mit. 5/2/2007 5/2/2007 12/31/2007 31-5S-65W Wetland mitigation area at confluence of Tallyn's Gulch and Sampson Gulch. 12/31/2007 2698 Tallyns Reach North Robinson Gulch 10/5/2000 30-5S-65W 10/5/00: Framework plan. FP in open space. 10/5/2000 3211 3348 Walker 4/13/2004 31-5S-65W 77+25 127+00 Piney Creek Tribs 4/13/04: Annex and initial zoning. Whispering Pines 6/22/2005 10/26/2006 31,32-5S-65W 55+00 66+20 Piney Tribs OSP 6/22/05: CSP and drainage report. 12/7/05; plans & 6/14/06; plans & 9/05/06; plans & 4/13/2004 10/26/2006 3350 Whispering Pines 6/22/2005 10/26/2006 32-5S-65W 6/22/05: CSP and drainage report. 12/7/05; plans & 6/14/06; plans & 9/05/06; plans & 10/26/2006 3349 Whispering Pines 6/22/2005 10/26/2006 32-5S-65W 66+20 96+00 Piney Tribs OSP 6/22/05: CSP and drainage report. 12/7/05; plans & 6/14/06; plans & 9/05/06; plans & 10/26/2006 3326 Whispering Pines 4/11/2005 32-5S-65W 4/11/05: FDP. 4/11/2005 3325 3763 Whispering Pines 4/11/2005 32-5S-65W 70+00 315+00 Upper Piney OSP 4/11/05: FDP. Whispering Pines F3 8/21/2015 31,32-5S-65W 55+00 138+89 Piney Tribs OSP Previously Approved Design MEP ID: 3348-3350 Returned design comments on: 10/31/2014, 12/30/2014, 1/8/2015, 1/13/2015, 1/23/15, 5/26/15. 8/21/2015 5/26/2015: Still needs MSP for detention basin. 8/21/2015: Made modifications to avoid improvements on Holmberg property 4/11/2005 8/21/2015 SAND CREEK 978 Cottonwood Country Club 11/10/1988 4-4S-66W 593+00 607+00 Sand Creek Leaving floodplain open. 11/14/1988 3341 Stapleton Filing 16 5/26/2005 5/26/2005 27-3S-67W One grouted boulder outfall. 5/26/2005 3782 Triple Creek Trail Connections 4,0,0-4S-66W; 17+00 31+50 2012 Sand Creek 0,0,0-- 1/7/2015: 2 trail crossings with sheet pile check structures down stream of each; Returned comments 1/7/2015 3278 Waterstone 11/23/2004 18-4S-65W 880+00 922+00 Sand Creek 11/1/04: Annex, zone and FDP. 11/23/04; (1977) master drainage study proposing open floodway. 11/23/2004 SENAC CREEK 2870 Beacon Point Two 1/2/2002 9/27/2004 20-5S-65W 1/2/02: Framework. 9/27/04: Landscape plans indicate elimination of open channels. 9/27/2004 559 Eastern Hills South 12/16/1986 28-4S-65W Outside District. 1/9/1987 2848 2846 2847 Southshore at Aurora Hunter Run 11/21/2001 28-5S-65W 0+00 10+00 Upper Sand Creek Basin OSP 11/21/01: Framework plan. Southshore at Aurora 11/21/2001 28-5S-65W 48+00 100+00 Upper Sand Creek 11/21/01: Framework plan. Basin OSP Southshore at Aurora 11/21/2001 8/4/2005 7/2/2008 21,28-5S-65W 418+00 490+00 Upper Sand Creek 11/21/01: Framework plan. 4/13/05; Basin OSP plans & 7/18/05; channel plans & 11/21/2001 11/21/2001 7/2/2008 3722 Southshore F13 28,0,0-5S- 433+00f 488+50 Upper Sand Creek 65W; 0,0,0-- Basin OSP 4/21/14 Design review & comments 4/21/2014 7

TOLL GATE CREEK 3719 RTD I-225 Rail Line Area E 6,0,0-4S-66W; 43+00 95+00 2013 Toll Gate Creek 0,0,0-- and E Toll Gate Creek Project also in Adams County (3S 66W Sec 31; 3S 67W Sec 36) 04/17/2014 Review & Comments 4/17/2014 796 Shelter America 4/5/1982 7-4S-66W 41 Toll Gate Creek Channelization 9/8/1987 9/8/1987 31-3S-66W; 6-4S-66W 9/8/1987 WEST TOLL GATE CREEK 798 Alamosa 4/4/1983 8,17-4S-66W Proposed for park and open space. 8/31/1990 783 Aurora Alliance 5/2/1980 17-4S-66W 790 Brock/Graham 5/26/1981 20-4S-66W Rezoning only. 1003 Colorado High School Activities Asso 3/31/1989 7-3S-66W 2:1 riprap slope covered and grassed. Need to see how it works out. Mowing could be problem. Could OK later. 4/24/1989 605 Fox Hill 3/11/1987 10-5S-66W 3/23/1987 637 Horseshoe Park 8/3/1987 8/3/1987 8/31/1990 8/31/1990 20,29-4S-66W WTGC between Buckley Rd & Mexico Ave. Low flow channel only. Wetland areas not included. 8/31/1990 638 Horseshoe Park Spillway 8/3/1987 8/3/1987 8/31/1990 8/31/1990 29-4S-66W WTGC to Iliff. Low flow channel only. No wetlands. 8/31/1990 793 Meadowood Channel Spillway 7/23/1982 29-4S-66W 190 Meadowood Channel Meadowood 10/18/1984 10/18/1984 29-4S-66W 785 Melody @ Quincy Res. 8/8/1980 10-5S-66W 980 Plaza at Aurora Mall Aurora Mall 12/6/1988 18-4S-66W Putting draiangeway in conduit. 12/7/1988 192 Pride's Crossing un-named 6/7/1985 6/7/1985 9-5S-66W Proposed long box culvert; Does not meet USDCM... 981 Pride's Crossing #11 12/6/1988 10-5S-66W 12/7/1988 1060 Spectrum Center Aurora Mall 3/15/1990 3/15/1990 18-4S-66W Channel appparently constructed without maint. elig. determination. 3/15/1990 774 Summer Breeze 4/5/1982 4-5S-66W No design subbmitted for review. 803 Toll Gate Villages 7/22/1984 17-4S-66W 3644 Toll Ggate Ck Bridge/Pedestrian Brid 6/19/2013 6/19/2013 17-4S-66W peds bridge, comments 9/21/12 6/19/2013 780 Victoria Place 3/7/1980 4-5S-66W 199 W. Toll Gate u/s Hampden 8/24/1984 8/24/1984 4-5S-66W 754 West Toll Gate Channel Park 8/27/1982 28,33-4S-66W Plat only. No drainage info provided. 10/9/1987 994 West Toll Gate Cr. Bank Prot. @CHS 1/27/1989 7-4S-66W 2/2/1989 198 West Toll Gate Creek 6/6/1985 6/6/1985 4-5S-66W Preliminary design report done... 788 Whitehaven 4/3/1981 20-4S-66W Left bank only. Side slopes of fill area too steep. 8

WESTERLY CREEK 945 Eastbrook 6/27/1988 24-4S-67W Never submitted to us. Learned about by 404 public notice. 6/27/1988 193 Riverbend Village un-named 3/3/1983 24-4S-67W WINDMILL CREEK 2836 Windmill Reserve Filing 1 10/3/2001 10/3/2001 8/2/2007 8/2/2007 19-5S-66W 71+40 80+50 Lone Tree et. al. OSP Channel improvements and three storm sewer outfalls. 8/2/2007 3230 Legend Windmill Reserve Filing 2 6/15/2005 6/15/2005 7/9/2007 7/9/2007 19-5S-66W 82+00 98+00 Lonetree et al OSP Drainage improvements. Concept, design or construction approved as of the given date. Concept, design or construction reviewed but not approved as of the given date. Concept, design, construction or final eligibility not yet considered. Project not eligible for District maintenance assistance as of the given date. Project eligible for District maintenance assistance as of the given date. 7/17/2007 9