(Z1804) Project June 2020 Lead Agency: S
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DRAFT Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project June 2020 Lead Agency: Siskiyou County 806 South Main Street Yreka, California 96097 Prepared by: 55 Hanover Lane Suite A Chico, California 95973 THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project DRAFT MITIGATED NEGATIVE DECLARATION SOUTHERN OREGON READY MIX REZONE (Z1804) PROJECT Project Title/Purpose Southern Oregon Ready Mix Rezone (Z1804) Project Lead Agency: Siskiyou County Project Proponent: Southern Oregon Ready Mix Project Location: The Project Area is located at 3139 and 3202 Spring Hill Drive in south- central Siskiyou County, north of the City of Mt. Shasta. (Figure 1. Project Vicinity and Figure 2. Site Location). The Project is located in Section 31 of Township 41 North, Range 04 West, (Mount Diablo Base and Meridian). It is also known as Assessor’s Parcel Numbers (APNs) 021-071-320 and 021- 071-330. The approximate center of the site is located at latitude 41º21’ 02” N and longitude 122º20’19” W. Project Description: The Proposed Project is for a request to rezone of two existing parcels totaling ±33.5 acres in size from AG-2 (Non-Prime Agriculture) to M-M (Light Industrial). The Project would also create a contractor’s yard, a 4,000-square-foot floor shop/office building, a concrete grinding residue washout basin, a truck parking area for company trucks and a storage area for the construction material and items related to construction. The Project would provide a gravel surface for parking areas of the Project site. Public Review Period: June 12, 2020 – July 12, 2020 Mitigation Measures Incorporated into the Project to Avoid Significant Effects: CUL-1: If subsurface deposits believed to be cultural or human in origin are discovered during grading and construction activities, all work must halt within a 100-foot radius of the discovery. A qualified professional archaeologist, meeting the Secretary of the Interior’s Professional Qualification Standards for prehistoric and historic archaeologist, shall be retained to evaluate the significance of the find, and shall have the authority to modify the no-work radius as appropriate, using professional judgment. The following notifications shall apply, depending on the nature of the find: • If the professional archaeologist determines that the find does not represent a cultural resource, work may resume immediately, and no agency notifications are required. • If the professional archaeologist determines that the find does represent a cultural resource from any time period or cultural affiliation, he or she shall immediately notify the lead agency Draft MND S-1 June 2020 Draft Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project and applicable landowner. The agency shall consult on a finding of eligibility and implement appropriate treatment measures, if the find is determined to be eligible for inclusion in the National Register of Historic Places (NRHP) or California Register of Historic Places (CRHR). Work may not resume within the no-work radius until the lead agency, through consultation as appropriate, determines that the site either: 1) is not eligible for the NRHP or CRHR; or 2) that the treatment measures have been completed to their satisfaction. • If the find includes human remains, or remains that are potentially human, the archaeologist shall ensure reasonable protection measures are taken to protect the discovery from disturbance (AB 2641). The archaeologist shall notify the Siskiyou County Coroner (as per § 7050.5 of the Health and Safety Code). The provisions of § 7050.5 of the California Health and Safety Code, § 5097.98 of the California PRC, and AB 2641 will be implemented. If the Coroner determines the remains are Native American and not the result of a crime scene, the Coroner will notify the NAHC, which then will designate a Native American Most Likely Descendant (MLD) for the Project (§ 5097.98 of the PRC). The designated MLD will have 48 hours from the time access to the property is granted to make recommendations concerning treatment of the remains. If the landowner does not agree with the recommendations of the MLD, the NAHC can mediate (§ 5097.94 of the PRC). If no agreement is reached, the landowner must rebury the remains where they will not be further disturbed (§ 5097.98 of the PRC). This will also include either recording the site with the NAHC or the appropriate Information Center; using an open space or conservation zoning designation or easement; or recording a reinternment document with the county in which the property is located (AB 2641). Work may not resume within the no-work radius until the lead agency, through consultation as appropriate, determines that the treatment measures have been completed to their satisfaction. Timing/Implementation: During construction Monitoring/Enforcement: Siskiyou County GEO-1 If paleontological or other geologically sensitive resources are identified during any phase of Project development, the construction manager shall cease operation at the site of the discovery and immediately notify Siskiyou County. Siskiyou County shall retain a qualified paleontologist to provide an evaluation of the find and to prescribe mitigation measures to reduce impacts to a less-than-significant level. In considering any suggested mitigation proposed by the consulting paleontologist, Siskiyou County shall determine whether avoidance is necessary and feasible in light of factors such as the nature of the find, project design, costs, land use assumptions, and other considerations. If avoidance is unnecessary or infeasible, other appropriate measures (e.g., data recovery) shall be instituted. Work may proceed on other parts of the Project site while mitigation for paleontological resources is carried out. Timing/Implementation: During construction Monitoring/Enforcement: Siskiyou County Draft MND S-2 June 2020 Draft Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project NOI-1: The following best management practices shall be incorporated during Project construction. • Project construction activities should be limited to daytime hours unless conditions warrant that certain construction activities occur during evening or early morning hours. • Locate stationary construction equipment as far as possible from the nearby noise-sensitive properties. • Notify the nearby residence whenever extremely noisy work (e.g., pile driving, use of pneumatic drill) would be occurring. • Shut off idling equipment. • Install temporary or portable acoustic barriers around stationary construction noise sources. Timing/Implementation: During Project grading and construction activity. Monitoring/Enforcement: Siskiyou County Draft MND S-3 June 2020 Draft Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project THIS PAGE INTENTIONALLY LEFT BLANK Draft MND S-4 June 2020 Draft Initial Study and Mitigated Negative Declaration Southern Oregon Ready Mix Rezone (Z1804) Project CONTENTS Summary ............................................................................................................................................................................... S-1 Mitigation Measures Incorporated into the Project to Avoid Significant Effects .................................................. S-1 SECTION 1.0 BACKGROUND ................................................................................................................................................ 1-1 1.1 Summary ............................................................................................................................................................ 1-1 1.2 Introduction ...................................................................................................................................................... 1-1 1.3 Project Location and Surrounding Land Uses .................................................................................... 1-2 1.4 Environmental Setting .................................................................................................................................. 1-2 SECTION 2.0 PROJECT DESCRIPTION ............................................................................................................................... 2-1 2.1 Project Description ........................................................................................................................................ 2-1 2.2 Regulatory Requirements, Permits, and Approvals .......................................................................... 2-2 SECTION 3.0 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED AND DETERMINATION .................. 3-1 SECTION 4.0 ENVIRONMENTAL CHECKLIST AND DISCUSSION ............................................................................ 4-1 4.1 Aesthetics .......................................................................................................................................................... 4-1 4.2 Agriculture and Forestry Resources ........................................................................................................ 4-5 4.3 Air Quality ......................................................................................................................................................... 4-7 4.4 Biological Resources ..................................................................................................................................