State-certified lab

EMSL Analytical – St. Louis

St. Louis, MO · St. Louis CountyCommercial laboratory

Call (314) 577-0150
WebsiteDirections
Certification
State certified
list checked September 30, 2026
Certificate
165
Missouri program
Tests listed
4
Arsenic and more
Homeowner samples
Call to ask
not listed on the record

About EMSL Analytical – St. Louis

EMSL Analytical – St. Louis is a commercial laboratory in St. Louis, MO (St. Louis County). It is on the Missouri drinking water program's list of certified laboratories (certificate 165), and we last checked the list on September 30, 2026.

The record does not say whether it takes samples from homeowners. Some certified labs only work with public water systems, so call before you collect a sample.

Before you go: Certified by the Missouri Department of Natural Resources for drinking water analyses (certificate 165, 165): Inorganic chemistry, Metals, Microbiology. Chemistry certification expires May 31, 2027. Bacteriology certification expires Aug 31, 2029. Listed by DNR as a commercial laboratory performing analyses for hire; call to confirm it accepts private well samples and to ask about bottles and pricing.

This profile is built from the official state list of certified drinking water laboratories, checked on September 30, 2026. Well Water Insider does not rate or endorse labs. Run this lab? Claim the profile to add prices, turnaround times, hours and a description.

Certification and services

State certified
Certification number
165
Certified by
Missouri drinking water program
Certified for
Inorganic chemistry, Metals, Microbiology
Lab type
Commercial
Last verified
September 30, 2026

Listed on the official state certified laboratory list.

How to test your water here

How this lab takes samples, based on its listing. Call to confirm hours, bottles and prices.

Homeowner samplesNot listed, call to confirm
Mail-in kitsNot listed, call to confirm
Walk-in drop offNot listed, call to confirm

Published lab fees in Missouri: $10 for a bacteria test. State Public Health Laboratory bacteria kit from any local health department ($10 handling fee). Prices at this lab may differ.

  1. 1

    Call for the right bottles

    Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.

  2. 2

    Collect from a cold tap before treatment

    Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.

  3. 3

    Keep it cold and deliver within 24 hours

    Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.

  4. 4

    Read the report against the standards

    Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.

Tests this lab is listed for

From the state certification list and the lab's own listing. Ask which ones it runs for homeowners.

Arsenic

Natural in some bedrock, with no taste or smell. The EPA limit is 0.010 mg/L. Learn more

Coliform Bacteria

Total coliform and E. coli. The test the CDC recommends every year for every private well. Learn more

Lead

Usually from plumbing and older well parts. EPA says there is no safe level. Learn more

Nitrate / Nitrite

From fertilizer, manure and septic systems. The EPA limit is 10 mg/L as nitrogen. Learn more

Location

100 Green Park Industrial Court, St. Louis, MO 63123

Lab address

Questions about EMSL Analytical – St. Louis

Is EMSL Analytical – St. Louis state certified?

Yes. It is on the Missouri list of laboratories certified for drinking water testing, last checked September 30, 2026.

What can EMSL Analytical – St. Louis test well water for?

Its listing covers arsenic, coliform bacteria, lead and nitrate / nitrite. Call to confirm prices and which tests it runs for private well owners.

Can I bring my own well water sample?

The listing does not say. Some certified labs only test for public water systems, so call before collecting a sample.

How do I contact EMSL Analytical – St. Louis?

Call (314) 577-0150 and visit the lab's website. The address is 100 Green Park Industrial Court, St. Louis, MO 63123.

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