2 CA Drinking Water Contact Hours awarded. Certificates for contact hours are available through your profile. How do I get my certificate? Contact hours have been approved for the Registered Environmental Health Specialist Program. Priority attendance will be given to those from smaller water systems. For registration questions, contact us at: registration@rcac.org• (916) 447-9832 ext. 1429 For a calendar of RCAC's full lineup of training courses offered, click here!