Lingering questions on how Kinder Morgan’s proposed Permian Highway Pipeline (PHP) could affect local groundwater sources led Barton Springs Edwards Aquifer Conservation District (BSEACD) leaders to withhold judgment Thursday.

While progress was made in gathering information on the project, some district leaders seek more transparency on Kinder Morgan’s part.

That was the crux of an at-times tense presentation by Kinder Morgan to BSEACD officials which covered the scope of the PHP. BSE...