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Home My WebLink About20002614.tiff AONCHURCH & Associates, Inc. ENGINEERS&GEOLOGISTS May 24, 2000 Intermill Land Surveying, Inc. Attn: Jim Bunkers 1301 North Cleveland Avenue Loveland, Colorado 80537 Subject: Mineral Resource Statement and Preliminary Soil Evaluation Lot A, in the Proposed Exemption No. 2465, A Portion of the Northeast Quarter of Section 1, Township 2 North, Range 63 West of the 6th P.M. Weld County, Colorado Job No. 12687-L Dear Jim, SCOPE As requested, we have conducted a preliminary geological and geotechnical evaluation for the subject site. The purpose of our investigation was to identify site conditions and to evaluate whether there is the presence of economically extractable mineral resources (specifically sand, gravel and quarry aggregate) and discuss the soil conditions as they relate to development of the site. This information is requested by the Weld County Planning Department to facilitate a change in land use zoning of the subject property from A(agricultural) to C-3 (commercial). INVESTIGATION This investigation was conducted by means of a site reconnaissance conducted on May 23, 2000 by a Professional Geologist. We also reviewed readily available maps and literature by the Colorado Geological Survey and USDA Soil Conservation Service. SITE CONDITIONS The site is a 10.02+ acre lot located in a rural area in northwest of Roggen in Weld County, Colorado. The parcel consists of non-irrigated, vacant land, which is currently, or recently in the past, used as pasture for livestock. There is an approximate 0% to 3% slope generally to the east and southeast with minor variations in slope direction. The lot is a moderately covered with grasses and weeds at the proposed field. A thin layer of topsoil appears to overlie fine, silty sand. EXHIBIT 2000-2614 7 DENVER 4501 Wadsworth Boulevard Wheat Ridge,CO 80033 303.463.9317 Fax:303.463.9321 MINERAL/SOIL Job No. 12687-L Page 2 PROPOSED USAGE At this time, the specific usage of the lot has not been determined. We anticipate that new structures will require permanent foundations and onsite wastewater systems (OWS). It is unclear if drinking water will be supplied by a local water district or onsite wells. SOIL EVALUATION The soil survey map provided by the USDA Soil Conservation Service indicates that the site is underlain with the Osgood sand. This is a wind-blown (eolian) soil with rapid permeability and low hazard for wind and water erosion. The sands are described as having slight limitations for septic tank absorption fields and severe limitations for shallow excavations due to potential caving of cut-banks. MINERAL RESOURCE STATEMENT Not all mineral resources were evaluated for the property. The primary concern, as we understand, are potential sand, gravel and quarry aggregate resources which may conflict with development. Colorado Special Publication 5-B was used as the primary reference for this preliminary evaluation and field verified by the geologist. Based on that document, the east side of the site lies within V-4 deposits, valley fill deposits, a probable aggregate resource. We observed no gravel mining operations in the vicinity. We observed no evidence of aggregate exposed at the surface on the property. Based on the small amount of property lying within this potential deposit, lack of mining in the vicinity and relatively small size of the lot, it is our opinion that there are no economically extractable aggregate resources on the site. CONCLUSION This study was preliminary in nature and did not include an extensive exploration program for the presence of oil, natural gas, uranium or other mineral resources not described above. No extractable mineral resources covered in this report are believed to be present at this site. Although no geologic or soil hazards appear to exist in the present condition, site specific geotechnical and onsite wastewater investigations should be conducted as planning of the project proceeds. If there are any questions or we can be of further service, please call. Sincerely, PPpO REO CHURCH& Associates, Inc. Reviewed by: (51.(0•• •Cevs )7 13172 Thomas W. Finl y Edward O. Church, P.E. ` Ssi . Professional Geologist TWF 3 copies sent LOT A, RECORDED EXEMPTION 2485 SCALE Portion of the Northeast Quarter of 1' = 2000' Section 1, Township 2 North, Range 63 West k of the 6th P.M., WELD COUNTY COLORADO N I r,. { n,y I,41- SITE lr. o z 3 �. A .'1 ) �� 'Y9 ��4 r / M F a,rx ,, ,-:;; r-Ez J - Is r I , ir „( , ' r-4 r. - ; r Ruggers S)Lot'A ant '. -NDKnrr t4 a srp4 linon 1 9 ' 3 r4 \'1 -y 11.-lro }� i l§ \ I1 f.�° k` dC rN {1 et ,t. 11 > U ti It.)-- J s 1 r f C .i i� F (: . ,...'.�P ,, �....,,..,>p 7 R.62 W. R.63 W. VICINITY MAP BASED ON PLAT BY INTERMILL LAND SURVEYING # P99-4254 VICINITY MAP JOB NO. 12687-L FIGURE 1 LOT A, RECORD!" D EMPTION 2466 SCALE Portion of the Nortneast Quarter of 1:37,500 Section 1, Township 2 North, Range 63 West of the 6th P.M., WELD COUNTY COLORADO N — I o) ) ) , - ___ —\r CrIc1 1 1.4,,h- ND; elm _/f, 14,\ /I' 10 \ An . ,•� /„1v; 1 cci ry , , 11 r7I 4�r, p� J o F4 eIt it:i I E I (19 �,�,>e„T,w-,.iiy "m+w111M. r•yl \.... / r� 6 T \ T,7•.."'.}..`.,71 Al _' \'\\ 0 \1c2 .,„ 1 ). .. j , , , l t � ec,;.„ .4m,1/4\. \I u ,-,\)3 ------ (--, (). l % r MS U,) I f i V 4 , 1 BASED ON: ATLAS OF SAND, GRAVEL & QUARRY RESOURCES -COLORADO FRONT RANGE COUNTIES -COLORADO GEOLOGICAL SURVEY SPECIAL PUBLICATION S-B MAP OF SAND, GRAVEL & QUARRY AGGREGEATE RESOURCES JOB NO. 12667-L FIGURE 2 LOT A, RECORD! MPTION 2485 SCALE Portion of the Northeast Quarter of 1' = 2000' Section 1, Township2 North, Range 63 West of the 6th P.M., WELD COUNTY COLORADO N I C . • 1 l I , , {fir vs. P. 70 �J 7 �A ]0 .1 .:,',C- , 1•1•C::.bO. 4t / :Ni:ON T.' i°: 49 � a 4 4 . ` k1f^Y ad:c : 7ti �---��t i{{i MIys' 70 044® 't s. 1/4 • 111 )d'�h {+. �•. L./ V pSrtf RgI $ If .4 1 49 iwy • Jr..) I ,, 7. ., ,,mown.... yMc,51::." :1, 1 r�'..�.�... '.N": 444.1" .'3.i alert YJ5cID4,�y X - .n • - 1x+ nM,,wr . . 49 �.( 4. }} , S. '1 : PFs .� ,q 49 Ate:. 52.• '��., T n / 69-4.•;•1/4i 1/4. ! �1�. Fl � !4` � // N: r"Irk ' ';' ra; k44 70 t ^ iI M 1 f eI 4O Vii, 7i ;k 1"! 7cli sue-' '.1' ''til.IA I SOIL SURVEY IS BASED ON USDA SOIL SURVEY OF WELD COUNTY, COLORADO AND SITE EVALUATION CONDUCTED BY THIS OFFICE. SOIL SURVEY MAP JOB NO. 12687-L FIQURE 3 102 SOIL SURVEY TABLE 6.--HUILDING SITE DEVELOPMENT--Continued • , r---_.—___.___— Soil name and Shallow Dwellings Dwellings Small Local roads map symbol excavations without with commercial and streets basements s t basements buildin 44 ;Slight ;Slight Slight Slight Moderate: Olney : low strength. 45 ;Slight ;Slight Slight Moderate: Moderate: Olney slope. low strength. 46, 47 :Slight ;Slight Slight Slight 'Moderate: Olney low strength. i 4 48 :Slight :Slight Slight Moderate: Moderate: Olney : slope. low strength. i y 49 :Severe: :Slight Slight Slight Slight. Osgood ; cutbanks cave. : 50, 51 ;Slight ;Slight Slight Slight Slight. Otero 1 52, 53 ;Slight :Slight Slight Moderate: Slight. r Otero : slope. 6 54 ;Slight :Severe: Severe: Severe: Moderate: Paoli : floods. floods. floods. low strength, frost action. : C 55 :Slight ;Slight Slight Slight Moderate: 1, Paoli low strength, 4 frost action. • 56 :Moderate: :Moderate: Moderate: Moderate: Severe: a Renohill 1 depth to rock, : low strength, low strength, low strength, low strength, I ; too clayey. : shrink-swell. depth to rock, shrink-swell . shrink-swell. shrink-swell . i 5, - ;Moderate: Moderate: Moderate: Moderate: Severe: Renohill 1 depth to rock, low strength, low strength, slope, low strength, T. too clayey. shrink-swell . depth to rock, low strength, shrink-swell. shrink-swell . shrink-swell . `, 58, 59 :Severe: :Severe: Severe: Severe: Severe: t Shingle ; depth to rock. I depth to rock. depth to rock. depth to rock. depth to rock. i 60o• Shingle :Severe: :Severe: Severe: Severe: Severe: • : depth to rock. 1 depth to rock. depth to rock. depth to rock. depth to rock. • Renohill :Moderate: ;Moderate: Moderate: Moderate: Severe: : depth to rock, low strength, low strength, slope, low strer, h, too clayey. shrink-swell . depth to rock, low strength , shrink-ss -ll . shrink-swell . shrink-swell . 61 ;Moderate: :Moderate: Moderate: Severe: Moderate: Tassel depth to rock. ; depth to rock. depth to rock. slope. depth to rock. 62 Severe: Moderate: Severe: Moderate: Moderate: Terry depth to rock. depth to rock, depth to rock. depth to rock. depth to rock. 63 ;Severe: Moderate: Severe: Moderate: Moderate: Terry depth to rock. depth to rock. depth to rock. depth to rock, depth to rock. slope. 64 :Moderate: Moderate: Moderate: Moderate: Moderate: Thedalund : depth to rock. low strength. depth to rock. low strength. low strength. 65 ;Moderate: Moderate: Moderate: Moderate: Moderate: Thedalund : depth to rock. low strength. depth to rock. low strength, low strength. lope. • See footnote at end of table. 106 SOIL SIJIIVLY TABLE 7.--SANITANY FACILITIF'S--Continued Soil name and Septic tank -- -� Sewage lagoon Trench Area Daily cover map symbol absorption areas sanitary sanitary for 1andllll fields landfill landfill 43 :Severe: :Moderate: Slight Slight ;Fair: Nunn : pores slowly. : excess humus. : too clayey. 44, 45, 46, 47, 4g-- Slight :Severe: Slight Slight Good. Olney seepage. 49 SIi ght ,Severe: Severe: Severe: fair: Osgood seepage. seepage. seepth{e. too sandy. 50, 51 , 5? Slight Severe: Slight Slight Good. Otero seepage. 53 Slight. Severe: Slight Slight Good. Otero slope , seepage. ,i4 ____ Slight .ev 'r.et :Severe: Severe: :Good. Pauli seepage. seepage, ,cop:yh•. 55 ,:l ii'lit Severe: :Severe: Severe: :Soot. Paoli seepage. seepage. seepage. 56, 'i7 laiitn .: :Severe: Severe: Slight Fair: Itenohill pore:. ;lowly, depth to rock. depth to rock. too ci,iyry, depth to rock. thin lay,., . 58, 59 .. Severe: Severe: Severn: Slight Poor: Shingle depth to reek . depth to rock. 1 depth to rock. thin lay.., . 60" : Shingle evere: .Severe: :Severe: .Slight - Poor: dca ph to rook. depth to ruck. depth to rock. thin Llyc, . Hennhill___________ Severe::: Severe: 5e :Severe: Slight Fair: pavr; slowly , depth to rock. depth to rock. too clayey, ,6'pIh Lo rock. thin layer . 61__.. _ :rvry Severe: :Severe: .`.evere: Pour: ft :,:; ,I I depth lu rock . depth to rock, depth to rock, secPvlle , thin layer, seepage, seepage. area retl.,tm. slope. 6d, 6t ____ ;uvvru: :Severe: :Severe: Slight Fair: Terry depth to rock. depth to rock, depth to rock. thin layer , seepage. area reclaim. 64 , 65 .____:Severe: ;Severe: :Severe: SIigh1. Fair: itiedalu: l , .hadh to rtel< . depth to rock. depth to rook. i thin layer . 66 :!W very: l`.I iY.ht :Moderate: Slight ._-___ Poor: Ulm pore+: slowly . too clayey . too clayey . 67 - Severe: 1 hater ate: :Moderate: Sligt. Poor: gig, 1 yelp slowly. :'.brpe. too clayey tai, clayey. 6Hx - ;Modes a l ,.: ':were; Severe: Seven: fear. list:., loi s iorl.heal '. ::lope, ., op:n .,e, epage, .,, rp:q'.,', too sandy. ..m.ilI atones. too .Tandy. ::mall sIgoe.:. 69, 711 :II ip,l,l ____ Irvine: Severe: Severe: PVor: Valent .eop.ntc. too sandy , .,eep.lpe, too sandy. seepage. 71x : Valent Slight - lovero; Severe: Severe: Poor: tau sandy, ::pop' .. . too sandy. seepage. Sue Ilnr I not al. cud ul I.:,LIe. Hello