Dear authors,

Many thanks again for your paper submission and your contribution to the discussion. Both reviewers have found the study valuable and well-presented, and I also agree the paper is interesting and worthy of publication after reading through it in detail. The paper is in an area of active research crossing the hydrology and biogeochemistry communities and the approach and findings are interesting for scientists in this community.

The reviewers have made some modest comments and suggestions for changes, and your responses to these issues seem appropriate and considered. I agree with the proposed changes for the final revision and request you upload an updated manuscript at your convenience.

I look forward to seeing the revised version of your study. Please contact me should you have any further queries.

Dear Authors

Thank-you for your revision and detailed response to the comments. I believe the paper is written to a high standard and conveys and interesting message and case-study and therefore am happy to accept in its revised form. The area of DOC+DON dynamics is of increasing interest in stream hydro-biogeochemistry and I believe your paper makes an excellent contribution.

Kind Regards
Matt Hipsey