Use Attainability Analysis Aquatic Life Uses for Perennial Reach of Sandia Canyon [Slides]
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
The following information will be presented during the February 23, 2022 Accord Pueblos Technical Meeting. The purpose of the study is to determine if natural thermal conditions are preventing the attainment of Coldwater Aquatic Life Use in the perennial reach of the upper Sandia Canyon Assessment Unit (Sandia AU). The New Mexico Water Quality Standards allow for a change in the designated use if a Use Attainability Analysis (UAA) demonstrates that the use is not attainable due to one or more of six factors listed in 40 CFR 131.10(g), including naturally occurring pollutant concentrations. The Sandia AU is located in a perennial reach of upper Sandia Canyon between Sigma Canyon and NPDES Outfall 001. The classified Segment 20.6.4.126 NMAC comprises perennial waters within Los Alamos National Laboratory boundaries and includes the Sandia AU. Persistent surface flows originate from NPDES permitted effluent releases. These releases have occurred since the early 1950’s and continue today. The UAA examines several lines of evidence. NMED’s Air-Water Temperature Correlation (AWTC) model is used for identifying appropriate stream classifications and attainable aquatic life use subcategories. The model correlates between July average air temperatures (ATEMP) and maximum weekly average stream temperatures. Air temperatures are obtained from PRISM and LANL Meteorological Towers and used to derive ATEMP. Thermographs were placed in the Sandia AU to obtain measured stream temperatures during summer months when stream temperatures are the highest. Measured data is used with AWTC modeled data to determine if the Sandia AU is meeting its natural air temperature driven thermal condition.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1846128
- Report Number(s):
- LA-UR-22-21480
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use Attainability Analysis for Upper Sandia Canyon
Use Attainability Analysis. Aquatic Life Uses for Perennial Reach of Sandia Canyon [Slides]
Evaluation of Macroinvertebrate Communities and Habitat for Selected Stream Reaches at Los Alamos National Laboratory
Technical Report
·
Mon Sep 27 00:00:00 EDT 2021
·
OSTI ID:1823709
Use Attainability Analysis. Aquatic Life Uses for Perennial Reach of Sandia Canyon [Slides]
Technical Report
·
Wed Aug 26 00:00:00 EDT 2020
·
OSTI ID:1657091
Evaluation of Macroinvertebrate Communities and Habitat for Selected Stream Reaches at Los Alamos National Laboratory
Technical Report
·
Fri Aug 12 00:00:00 EDT 2005
·
OSTI ID:876515