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PZ - Geotechnical Feasibility LetterSITE ONSU LTI NG, LLC Mr. Matt Schultz Schultz Development Post Office Box 1115 Meridian, Idaho 83680 Re: Geotechnical Feasibility Letter Proposed Subdivision —Waltman Property 505-675 West Waltman Lane Meridian, Idaho Matt: February 20, 2018 Page 1 of 7 File # 18036-A On June 2, 1017, SITE excavated four test pits on the referenced property. The property is located on the south side of Waltman Lane, north of Interstate 180 and west of Meridian, Road. Ten Mile Creek is the property's east boundary. Our test pits were excavated on a property that includes numerous parcels. The following parcel numbers and acreages were found on the Ada County Assessor's website. Parcel Number Address Acres S1213428301 S. Johnson Lane 2.48 S1213427840 W. Waltman Lane 2.68 S1213428020 W. Waltman Lane 0.68 S1213427860 505 W. Waltman Lane 0.57 S1213428010 516 W. Waltman Lane 2.08 S1213427872 W. Waltman Lane 0.58 S1213427880 521 W. Waltman Lane 0.66 S1213427890 615 W. Waltman Lane 0.57 S1213428301 S. Johnson Lane 29.00 S1213428050 675 W. Waltman Lane 1.00 TOTAL ACRES 39.30 Test pits were excavated, and temporary wells installed, to confirm the depth to groundwater. The test pits revealed the groundwater was 7-8 feet below the ground surface in June 2017. Well TP1 did not survive the first month. Cattle destroyed well TP2 in August 2017. In August 2017, A former domestic well casing was observed in the field on the lot addressed as 505 W. Waltman Lane. It is shown on the aerial photo in the Appendix. This well has also been measured with the wells installed by SITE. Two test pit installed wells and the domestic well described above remain. Groundwater peaked at 4-8 feet deep in September 2017. A large percentage of this difference is due to variation in ground surface elevation. 208-440-6276 * bjarnoldpe@msn.com (1) Post Office Box 190537 * Boise, Idaho 83719 ONSULTING, LLC The Ada County Soil Survey, (US Soil Conservation Service) indicates the onsite groundwater may be as shallow as 1.5-3.0 feet in the northeast half of the site along Ten Mile Creek and greater than 80 inches deep in the southwest half. Wells logs for nearby and adjacent properties were obtained from the IDWR website. Four logs were selected and are included with letter. Two of these wells are located on adjacent parcels, on Waltman Lane at or across the street from the subject property, both indicating a static groundwater of 12 feet deep. The other two are to the east, across Ten Mile Creek and indicate static groundwater at 4 & 7 feet deep. Measured and reports depths to groundwater indicate this development can be constructed but will require either substantial filling or shallow / high groundwater methods for storm water disposal. Groundwater will require pumping during installation of deep utilities but will not impact construction of future homes or right of ways on the property. We look forward to assisting with your geotechnical needs as this project proceeds to the design phase. A complete geotechnical recommendation report will be prepared as soon as the labwork is completed and your proposed layout is confirmed. Should you have any questions or require additional information, please contact our office at your convenience. Respectfully submitted; Bob J. Arnold, PE SITE Consulting, ZtU J. AVN n 208-440-6276 * bjarnoldpe@msn.com (2) Post Office Box 190537 * Boise, Idaho 83719 /��m EID ,/SITE ONSULTING, LLC AREA MAP WB INTERSTATE 84 EB INT_E_ RSTATE 84 .a ._ F.-� d �.f WS Jt4jSRSTATE ON .EQ INTERSTATE 84 pFF Ex\'t 0 oc z 208-440-6276 * bjarnoldpe@msn.com (3) Post Office Box 190537 * Boise, Idaho 83719 /SITE ONSULTING, LLC Aerial Photo With Test Pit Locations from Google Earth and hand-held GPS 208-440-6276 * bjarnoldpe@msn.com (4) Post Office Box 190537 * Boise, Idaho 83719 CONSULTING, LLC WALTMAN PROPERTY Monitorine Wells 208-440-6276 * bjarnoldpe@msn.com (5) Post Office Box 190537 * Boise, Idaho 83719 TP1 TP2 TP3 TP4 Well Eat N43 35 46.8 N43 35 43.6 B43 35 44.2 N43 35 38.8 N43 35 50.0 Long W116 24 04.1 W116 2410.1 W116 24 01.4 W116 24 04.1 W116 23 59.3 HUB Ele Casing Ht 3.3 4.1 3.0 1.7 0.4 Casing Ele 6/2/2017 10.3 D 10.0' 10.5 8.7 NA Installed -7.0 >-10.0' -7.5 -7.0 7/15/2017 Gone D 10.0' 7.5 7.0 NA (cattle) >-10.0' -4.5 -5.3 8/12/2017 Gone D 10.0' 7.2 6.6 8.5 >-10.0' -4.2 -4.9 -8.1 8/31/2017 Gone Gone 6.9 6.2 8.5 -3.9 -4.5 -8.1 10/6/2017 Gone Gone 7.2 5.9 9.4 -4.2 -4.2 -9.0 Stopped for Winter 02/16/18 Gone Gone 8.8 9.8 11.5 -5.8 -8.1 -11.1 208-440-6276 * bjarnoldpe@msn.com (5) Post Office Box 190537 * Boise, Idaho 83719 SITE ONSU LTI NG, LLC WELL LOGS a � o a I yy�■` � �, a�µ❑ � Cl � �"I' '1 � ppieQ � • a �5❑°� E o d !t ` r s �ur ❑ s7 � F s E3 ; � P _ E - l� a so vo 3 E � 1.2�E °°3! 3 fix$ c,S sod �=,I 81J�ii€ ❑°'iYIwI1 fy��+A ❑a ° e S5 S% S ,tot ❑ ��❑ E� @'0 8 5 c 3 8q: °o 3 0110 W� o i yyyyo �oe ❑❑ O yn = ❑� O ;: � E66GGS fii � E5 £ :° Ind � 3 Z '¢ 6� z�❑E f g+JY�S 3.��' s_pF gg $ai _F Et i I I I;3�1��.-5 I3 qX� 5 r N aJcs_ o �C❑ ❑� �~� I •#�o oSSu� �h 5 r5 J'd: 3 ��LL6�jj.i�6i E5 €gF K a � sa e> �m c)Trr o S d ° € arOCs' 3 = e$ o¢�a a WC s s z 03 W J ; ~ J R g osJJIV v w $ 5 €; s E� 208-440-6276 * bjarnoldpe@msn.com (6) Post Office Box 190537 * Boise, Idaho 83719 s �ur ❑ ❑( B _ E - l� a so 3 E W N aJcs_ 6° ��LL6�jj.i�6i E5 €gF �W s� 3 s E � � ❑ 13 m � FFiFF °❑F °s 1a p[ ❑ El El Cl 3g yi yy ❑ 13 i JIM rJ � C i��lp�ll �I i°° �� # ❑ 3j � 3 ��. 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