Methods and arrangements for collecting data related to a water quality sample location. Identifying information of a water quality sample container is electronically obtained, and identifying information of a water quality sample location is electronically obtained. There is placed, in the container, a water sample from the water quality sample location. There is stored the identifying information of the water quality sample container and the identifying information of the water quality sample location; such storing includes associating the identifying information of the water quality sample container and the identifying information of the water quality sample location. Other variants and embodiments are broadly contemplated herein, including methods and arrangements for validating water quality sample data.