You'll want to hire an EPA-certified water testing company; tests run about $20.
你可以花20美元，聘请由美国环保署认证的公司帮你测试。
If you're on a private well or want more in-depth information, consider hiring a private water-testing company.
如果你有一个私人的井或者想要更加深入的信息，就考虑请一个私人的水测试公司去测试水质量。
If you're on a private well or want more in-depth information, consider hiring a private water-testing company.
如果你有一个私人的井或者想要更加深入的信息，就考虑请一个私人的水测试公司去测试水质量。
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