Many states have agricultural extensions on a state university campus with garden variety soil testing of pH, certain nutrients, micronutrients, soil texture, percent organic matter, etc. Some even test for garden variety heavy metals like cadmium, arsenic, chromium, and of course, lead. Many will test for more than this. Google "soil testing services" and your state to find out where to get this done. Below are some that I have used (except Maine, which is exhaustive and useful in certain locales) and have been satisfied with their expediency, information, and prices.