Skip to content
Herrera
  • Team
  • Story
  • Projects
  • Publications
  • Services
  • Blog
  • Careers
  • Contact
  • Search

Lake Whatcom North Shore Water Quality Testing

Herrera designed and implemented a water quality monitoring project to evaluate the impact of on-site septic systems on Lake Whatcom, which serves drinking water to a population of more than 80,000 people in Bellingham, Washington. Due to concerns about this contamination, the Lake Whatcom Water and Sewer District contracted with Herrera to assess the presence of contaminants from septic systems located along 3 miles of the north shore  with approximately 100 homes served by septic systems. Herrera reviewed literature and evaluated various septic system detection techniques, and developed an experimental design using multiple techniques for multiple lines of evidence. Herrera prepared a water quality monitoring and quality assurance project plan (QAPP) documenting procedures for sample collection, field data collection, laboratory analysis, data analysis, and quality assurance and control. Herrera implemented the QAPP by monitoring the entire lake shoreline and all discharges in the project area and nearby control (undeveloped) area for the presence of septic system leachate using a hand-held fluorometer to detect low levels of optical brighteners from laundry detergents. Water samples were collected at 15 stations showing elevated concentrations of optical brighteners for analysis of fecal coliform bacteria, E. coli bacteria, phosphorus, chloride, bromide, and MST using qPCR analysis of two types of Bacteroidetes fecal bacteria that are exclusive to the human gut. Monitoring was conducted during three separate periods of high rainfall when the water table is high and lateral transport of septic system drainage is highest. Herrera prepared a detailed scientific report of the project findings that were used  for inspecting septic systems located where high human fecal sources were observed and for estimating phosphorus loadings from septic systems to Lake Whatcom.

Location
Bellingham, WA
Owner
Lake Whatcom Water & Sewer District
Project Contact
Rob Zisette
Services
Aquatic Ecology
Project Type
Environmental Science

Related Projects

View all projects →

Lake Sammamish Snorkeling Survey

→

Hidden Lake Dam Removal

→

Swift Creek Sediment Management Action Plan Implementation

→

City of Kenmore Integrated Aquatic Vegetation Management Plan

→

White River at Pacific Right Bank Flood Protection Project Planning and Design

→

Trophic Cascade Effects on Algae Blooms in Washington State

→

Navigation

  • Team
  • Story
  • Projects
  • Publications
  • Services
  • Blog
  • Careers
  • Contact
  • Search

Our Offices

Seattle, WA
2200 Sixth Avenue
Suite 1100
Seattle, WA 98121
Phone (206) 441-9080
Contact: Phil Coughlan
Portland, OR
1001 SE Water Avenue
Suite 290
Portland, OR 97214
Phone (503) 228-4301
Contact: Ellen McClure

 

Missoula, MT
101 East Broadway
Suite 610
Missoula, MT 59802
Phone (406) 998-6760
Contact: Heidi Houck
Bellingham, WA
1329 North State Street
Suite 200
Bellingham, WA 98225
Phone (360) 398-5075
Contact: Chris Webb

 

Olympia, WA
1220 4th Avenue E
Olympia, WA 98506
Phone (360) 754-7644
Contact: Joy Michaud
LinkedInFacebookTwitterInstagram
Join our Newsletter

Copyright © 2018 Herrera Environmental Consultants - Made by Needmore

Join Our Newsletter