Waterstop has a singular purpose: To prevent the passage of fluids across and along concrete joints. This page is dedicated to all things waterstop, as used to seal joints in concrete construction. Feel free to post any comments or questions and I will answer promptly.
J P Specialties, Inc., the manufacturer of Earth Shield® Waterstop, is proud to announce that our PVC waterstops are certified to NSF/ANSI 372 and conforms with the lead content requirements for “lead-free” plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act.
Additional certifications include:
NSF 61 — Safe for drinking water
CA Prop 65 — carcinogen-free
CRD C-572 — Corps of Engineers specification for waterstop