Students examining soil profiles in the field
Urban Soils Lab at Brooklyn College
Our lab is open for spring and summer 2021. Due to COVID-19 access restriction, samples must be mailed in, or pre-arranged drop off for large batches (e-mail soil@brooklyn.cuny.edu to arrange).
The affordable soil testing service is offered as part of Brooklyn College's commitment to community service. We accept samples from all states within the United States. By requesting this service, the customer agrees that the data may be used for statistical analysis and research purposes. The customer's identity and address will be kept confidential.
- Collect soil samples following Sampling Instructions (pdf).
- Download and complete the Submission Form (doc) for each sample. Print your e-mail clearly—that is how we submit your results. Clearly label each sample bag in your package so that they match the respective submission forms. Each sample requires a separate submission form (one sample per submission form). Calculate the payment amount and indicate method of payment.
- Print the completed submission form(s) and place in a package with the soil sample(s), along with a check or money order made out to Brooklyn College Departments (ESAC). Cash is also accepted if dropping off in person.
Results will be e-mailed to you within two weeks, depending on the requested parameters.
Tests, Test Packages, and Fees
Test Packages (Recommended for urban gardeners)
- Soil Lead and pH Test—$20. Soil samples are tested for pH and lead.
- Basic Soil Quality Test—$55. Soil samples are tested for (1) pH; (2) salt content; (3) soil class; (4) NPK levels; (5) lead, arsenic, copper, and zinc (common "indicator" contaminants); and (6) organic content.
Single Tests
- Lead XRF screening—$10. Recommended for a screening for contamination.
- pH Test—$10. The pH is determined using a 1:1, V:V method.
- Soil Class (Texture)—$10. Soils are categorized according to USDA soil textural classifications using the Jar Method.
- Soluble Salts—$10. Total soluble salts is determined using a 1:2, V:V electrical conductivity method.
- NPK kits—$10. N-P-K kits assign the levels of nutrients.
- Organic content—$12. The percent of organic matter (humus) in soil or compost is determined by the loss on ignition.
