PWS Drinking Water COC

by | Sep 15, 2022 | Drinking Water

Video Overlay

We’ve updated our Public Water Supply (PWS) Drinking Water COC/Submittal Form for Coliform Bacteria and basic chemical analysis. You can download it at  our Resources page.

 

 

Join us for more information

about the environmental laboratory industry, plus events we’re attending and hosting.

New Coeur d’Alene Drop-off Location

Our Coeur d’Alene Sample Drop-Off location is changing.Starting Wednesday, May 1, 2024Sample bottle pick-up & drop-off will be at USFS Coeur D’Alene Nursery3600 West Nursery Rd, Cd’A, ID 83815 The courier days will also change.Bottles will be picked up, promptly...

New Private Drinking Water COC / Submittal For

We’ve updated our Private Drinking Water COC/Submittal Form for Coliform Bacteria and basic chemical analysis. You can download it at  our Resources page.    

New Sandpoint Drop-off Location

Our Sandpoint drop-off location has moved from Ponderay Pump to Kootenai-Ponderay Sewer District: Kootenai-Ponderay Sewer District511 Whiskey Jack RdSandpoint, ID 83864 Please drop off samples Tuesday afternoons before 5:00 PM, or between 8:30 AM and 8:45 AM on...

Biotic Ligand Model

The Biotic Ligand Model (BLM) takes into account many environmental conditions in order to determine if a metal exists in a form or concentration that is toxic to aquatic life.  Toxicity is usually based upon the dosage of whatever it is that we are looking at.  At...

SVL Analytical celebrates 50 years of science, family and mining

From geology exploration to environmental compliance, SVL attributes its longevity to hard work and an adaptive mentality. The laboratory may be an unrecognized partner—that is until something goes wrong like a spill, a breach, a new compliance rule. Our data users...

TCLP or SPLP on a Solid Sample

Why is this TCLP/SPLP on a solid sample a common question? The main reason is that people don’t understand the difference between characterization and hazardous determination.  The EPA developed the TCLP Program to determine when certain materials have to go to a...

What does Cation/Anion Balance Mean?

Introduction to Cation/Anion Balance (CA Balance) Water that is potable (drinkable) should be electrically neutral.  This is determined by taking into account results from the following analytical testing: pH, conductivity, total dissolved solids, and other analytical...

What’s the difference between accuracy and precision?

Have you ever wondered what the difference between accuracy and precision is? The classic example is this: I shoot five arrows from a hundred yards and they land either in or just outside of the bullseye.  The consensus from the gallery will be that I am a very...

Understanding Control Charts

What are control charts? Control charts are a visual depiction of ongoing data points that various statistics are applied to.  The EPA used to require a laboratory to adjust its spike acceptance recovery percentage based upon how spikes were recovered over time...

How Low Can You Go – Well No Lower Than The MDL

There is always confusion on how low a lab can go when it comes to what their instruments can detect.  The EPA and TNI came together and changed how Method Detection Limits (MDL) are established for an instrument or group of instruments. They wanted to account for the...