EPA recommends the use of a lab that is certified to perform these specific tests on drinking water.
(EPA; recommends; the use of a lab) (a lab; is certified; to perform these specific tests on drinking water) (a lab that is certified; to perform; these specific tests; L:on drinking water)
EPA a lab a lab that is certified
recommends is certified to perform
the use of a lab
to perform these specific tests on drinking water
these specific tests L:on drinking water