TABLE 1. Reported microbial water quality testing (n = 100) status and GAP certification status (n = 101) by state Kansas n (%) Have tested water Never tested water Use third-party test results Total GAP certified Working toward being GAP certified in the future Not GAP certified Total 16 (31.4) 25 (49.0) 10 (19.6) 51 2 (3.9) 7 (13.7) 42 (82.4) 51 Missouri n (%) 27 (55.1) 13 (26.5) 9 (18.4) 49 12 (24.0) 8 (16.0) 30 (60.0) 50 Total 43 38 19 100 14 15 72 101 TABLE 2. The frequency of microbial water quality testing by GAP certification status (n = 101) More than once/yr n (%) GAP certified Working toward being GAP certified in the future Not GAP certified 10 (71.4) 1 (6.7) 3 (4.2) Once/yr n (%) 0 (0.0) 3 (20.0) 8 (11.1) 2-3 times in last 10 yr n (%) 1 (7.1) 1 (6.7) 9 (12.5) Once in last 10 yr n (%) 1 (7.1) 0 (0.0) 6 (8.3) Never tested n (%) 0 (0.0) 8 (53.3) 31 (43.1) Third-party water test n (%) 2 (14.3) 2 (13.3) 15 (20.8) 14 15 72 TABLE 3. Treatment application status for postharvest water based on GAP certification status (n = 99) Apply treatment n (%) GAP certified Working toward being GAP certified in the future Not GAP certified Of survey respondents who indicated that they used production water in their operation (n = 90), 75 (83.3%) reported that they did not treat their production water. Of the respondents who reported treating their production water, four (4.4%) reported using chemical sanitizers, whereas 11 (11.1%) respondents indicated using physical methods such as sand filtration. Of survey respondents who indicated that they used postharvest water in their operation (n = 90), 68 (75.6%) reported that they did not treat their postharvest water. Fifteen respondents (16.7%) reported treating postharvest water with 6 (46.2) 3 (21.4) 12 (16.7) No treatment applied n (%) 7 (53.8) 11 (78.6) 60 (83.3) Total 13 14 72 a chemical sanitizer and four (4.4%) reported using other treatments such as sand filtration or UV light. In a comparison of water treatment status and the water source used (Fig. 3), six (6.7%) respondents reported using surface water (ponds, cisterns, or rain barrels) for postharvest use without applying any treatment. When asked what other practices (besides treatment) growers used to maintain or improve production water quality, most (n = 70, 77.8%) respondents using production water in their operation indicated that they did not use any other November/December Food Protection Trends 463 Total