Item C: Delta Sand and Gravel Metro Plan Amendment

Home Browse Search

The Eugene City Council finds that the application contains materials sufficient to satisfy OAR 660-023-0300 (8) for purposes of completing Step 2 requirements. STEP 2: SIGNIFICANCE OF THE RESOURCE 660-023-0180 (2) (b) Local Governments shall apply the criteria in section (3) or (4) of this rule, whichever is applicable, rather than OAR 660-023-0030(4), in determining whether an aggregate resource site is significant. Lane County determined that the criteria in section (3) of this OAR are applicable to this PAPA application. The criteria in section (4) of this OAR are not mandatory. OAR 660-023-180 (3): An aggregate resource site shall be considered significant if adequate information regarding the quantity, quality, and location of the resource demonstrates that the site meets any one of the criteria in subsections (a) through (c) of this section, except as provided in subsection (d) of this section: (a) A representative set of samples of aggregate material in the deposit on the site meets the applicable Oregon Department of Transportation (ODOT) specifications for base rock for air degradation, abrasion, and soundness, and the estimated amount of material is more than 2,000,000 tons in the Willamette Valley, or more than 500,000 tons outside the Willamette Valley; OAR 660-023-0180(1) (a) defines "Aggregate resources" as naturally occurring concentrations of stone, rock, sand gravel, decomposed granite, limestone, pumice, cinders, and other naturally occurring solid materials commonly used in road building or other construction.” This rule requires review of two characteristics of the resource: quantity (2,000,000 tons) and quality (must meet ODOT standards). The record contains expert geologic testimony on both sides of these issues. The applicant’s analysis by EGR and Associates was reviewed by another certified geologist and DOGAMI, and the SCRO resource geologist reviewed the data and submitted comments. The AASHTO ASTM Standard Practice for Sampling Aggregates language describes the sampling protocol for roadside or bank run sand and gravel deposits under Appendix D75, section X2.3.2. Quantity: The estimated quantity of the resource must exceed 2 million tons to satisfy this aspect of the criterion, since the site is located in the Willamette Valley. The applicant’s report concludes that there is over 6 million cubic tons of material, and possibly more than 9 million cubic tons of material, present beneath the expansion site, an amount well in excess of the 2 million cubic ton requirement. DOGAMI, while acknowledging that resource evaluation is not typically part of the function of the Mined Lands Regulation and Reclamation Division, estimates the resource to be over 15 tons on the 53 acre site. DOGAMI estimates did not subtract silt and clay occurrences, which may not represent separate layers and may be treated as internal waste in the production Exhibit 144 phase (). Quality: The set of standards addressing quality is found in the Oregon Department of Transportation (ODOT) Standard Specifications for Highway Construction for base rock for air degradation, abrasion, and sodium sulfate soundness. The appropriate Test Method for abrasion is AASHTO T 96 and for degradation is ODOT TM 208. These test methods were used by Professional Service Industries, Inc. to analyze the aggregate material. ODOT staff confirmed that there are no ODOT specifications for sodium sulfate soundness for base rock. ODOT