Free Well Water Testing Well water testing should be completed once a year. Jasper County Environmental Health has a grant to cover the cost. Contact us today to schedule a test or with any questions at 641-792-3084. Jasper County Environmental Health 315 W 3rd St N- #150 Newton IA 50208 SM-NE4484639-0331 Free Well Water Testing Well water testing should be completed once a year . Jasper County Environmental Health has a grant to cover the cost . Contact us today to schedule a test or with any questions at 641-792-3084 . Jasper County Environmental Health 315 W 3rd St N- # 150 Newton IA 50208 SM - NE4484639-0331