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Nestwell
Essential Soil Test - 5A
5
Lab markers
10
Days until results

Essential Soil Test - 5A

Soil lab test kit

Price

$180

The basics of your soil as growing medium: pH, organic matter and the nutrients that decide what will actually thrive.

  • 30-day money-back guarantee
  • Free shipping in 3-5 business days

What’s included

  • All sampling materials
  • Easy-to-follow instructions
  • Full contaminant details for your address
  • Prepaid 2-day return shipping
  • Accredited lab network
  • Regulatory analytical methods
  • Per-location results
  • Scored against EPA + CDC standards
  • HSA/FSA eligible via TrueMed

It’s worth testing for if…

  • You are planning a garden and want to start from fact
  • Plants are failing and you do not know why
  • You want the agronomy before the contamination question

What is in your soil?

5 measurements
Essential Soil Test - 5A

This is the agronomy rather than the contamination: pH, organic matter and the nutrients that determine what will actually grow. pH is the master variable — it governs which nutrients a plant can take up at all, and it also governs how tightly soil holds on to metals, so it matters for both questions. Worth having before or alongside a contamination screen.

How to Test

Take small scoops from a few spots across the area you care about, mix them in the bag provided, and seal it. A blend beats a single hole, because contamination in soil is patchy.

Every measurement, explained

At Nestwell, we provide science backed ranges for all the exposures in your home, allowing for personalized suggestions of in home remediation.

5 measures across 3 groups, 4 of them written up by our advisors. Open a group to read what it covers.

  • Water properties

    Organic Matter (by LOI)

    What it is

    A measure of the decomposed plant and animal material in your soil, which affects its health and fertility.

    Not a health concern itself, but very low or very high levels can indicate soil quality issues that affect what grows in it and how water drains.

    detects to 0.1 mg/kg

  • Inorganic compounds

    Nitrate (as N)

    Hazardous

    What it is

    A common water contaminant that comes from fertilizers, septic systems, and agricultural runoff.

    Can be linked to

    • Blood and bone marrow

    Dangerous for infants under 6 months — high nitrate levels can interfere with oxygen in the blood, causing 'blue baby syndrome.'

    detects to 3.5 mg/kg

  • Inorganic compounds

    Phosphorus

    Hazardous

    What it is

    An essential plant nutrient found in soil from fertilizers, animal manure, and natural mineral deposits.

    Can be linked to

    • The brain and nervous system
    • Fertility and reproduction
    • Short-term toxic effects at high doses

    Not a direct health risk from soil contact, but excess phosphorus can run off into waterways and cause harmful algal blooms.

    detects to 25 mg/kg

  • Minerals

    Potassium

    What it is

    A naturally occurring mineral found in many water supplies, sometimes added by certain water softener systems.

    Generally safe and essential for the body, but very high levels may be a concern for people with kidney problems.

    detects to 70 mg/kg

Also measured

pH

“Detects to” is the method detection limit — the lowest concentration this kit's method can distinguish from zero. The lab may substitute an equivalent or updated method, in which case its limit may differ from the one shown.

Designed To Understand Your Whole House

A single kit answers one question properly rather than several vaguely. Whichever you start with, it is the same lab, the same methods, and the same reporting — so results from one kit sit beside results from the next, in one place, on the same scale.

Accredited labs, regulatory methods

Every sample is analyzed by an accredited environmental lab with the same methods regulatory testing uses.

Numbers with regulatory context

Results come back as a measured value next to the standard it is judged against, not just a "detected".

One box, no home visit

Everything arrives at once and we tell you both where and how to sample, no outside home inspection needed.

How Nestwell Testing Works

How Collection Works

Understand the science –›

  1. Collect

    Take small scoops from a few spots across the area you care about, mix them in the bag provided, and seal it. A blend beats a single hole, because contamination in soil is patchy.

  2. Mail

    Everything goes back in the same box with the prepaid return label. No appointment, nobody in your house, and easy to send back when convenient for you.

  3. Read

    Results land in your Nestwell dashboard in about 10 days, each scored against the standard that applies to it.

A sample bottle being filled at a kitchen tap
Wiping a surface to collect a sample
Nestwell kit boxes on a kitchen counter

Why Nestwell?

CapabilityNestwellHardware Store StripsIn Person Inspector
Samples from across your homeYesOne sample, one placeYes
Real exposure concentrationsYesPaper colour keySometimes
Accredited lab, regulatory methodsYesNoSometimes
Nobody has to come into your homeYesYesNo
Results tracked over time in one placeYesNoOne time result

A number is only useful next to its limit.

At Nestwell, we provide science backed ranges for all the exposures in your home, allowing for personalized suggestions of in home remediation.

Accredited labs only

Samples are analysed by accredited environmental laboratories using the analytical methods used for regulatory compliance work: the same reading a professional consultant would order.

Each result has a standard

A number on its own is not an answer. The EPA action level for lead in water is 15 ppb; the CDC states there is no safe level of lead exposure for children. Each finding is shown against the limit that applies to it.

Where there is no limit, we say so

The EPA sets no numeric limit for mold, and moisture control is the real remedy. Mold results are reported as what is growing and at what relative level, never as just a pass or a fail.

Medical advisors

Built with leading medical experts

Dr. Malathi Srinivasan

Dr. Malathi Srinivasan

Clinical Professor of Medicine, Primary Care and Population Health

Stanford University

“Our physical & home environment is a direct determinant of our health, and is immunoregulatory. In a year, we breathe about 6 million times, drink 250 gallons of liquid, and eat almost 2 tons of food, with hundreds of compounds interacting on our skin and immune systems. Small environmental changes make a big difference, especially in early childhood development and for vulnerable adults.”

Frequently Asked Questions

Have questions? Find answers to common customer concerns below.

What does the Essential Soil Test - 5A actually measure?

The panel runs 5 measures, covering Water properties, Inorganic compounds and Minerals. Every one is listed on this page with its detection limit, so you can check for a specific substance before you buy.

How do I take the sample?

Take small scoops from a few spots across the area you care about, mix them in the bag provided, and seal it. A blend beats a single hole, because contamination in soil is patchy. It takes about 10 minutes, and everything you need comes in the box.

How long until I get results?

The kit reaches you in about 3 days. Once the lab receives your sample, results appear in your Nestwell account in about 10 days. Return shipping is prepaid and included.

Who analyses the sample?

An accredited environmental laboratory, using published analytical methods — the same methods and the same labs used for regulatory and commercial testing. Nestwell does not run the analysis itself.

Why do some substances on the panel have explanations and others do not?

Our advisors have written up 4 of the 5 measures on this panel so far. The rest are still measured, reported and held to the same detection limits — they are listed under "Also measured" until the write-up exists. We would rather show you the gap than fill it with something we have not checked.

What happens if something comes back high?

Your results are shown against the relevant reference values rather than as a bare number, so you can see which measures stand out and by how much. The lab reports what it measured; it does not diagnose, and a lab result is not medical advice.

Can I pay with an HSA or FSA?

Most Nestwell kits are HSA/FSA eligible through Truemed. Eligibility is shown on the kit page at checkout, and where it applies you can pay with pre-tax dollars.

Free. 3 minutes. No card required.

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$180