Here are some specific sections from the COE Corps Of Engineers documents that may pertain to what you are seeking to do. It is up to you to read and understand the regulations. Remember they are all posted online, you do have access to them. But in my opinion, which might not match their opinion or yours it is saying you have to personally be at the campsite each day, you can not go off at leave your personal stuff behind for more a period exceeding 24 hours.
§ 423.33 Camping. (a) You may camp on Reclamation lands, except that you must comply with any restrictions, conditions, limi-tations, or prohibitions on camping es-tablished by an authorized official in a special use area under subpart E of this part 423. (b) You must not camp on Reclama-tion lands at any single Reclamation project for more than 14 days during any period of 30 consecutive days, ex-cept as allowed by a permit issued under 43 CFR part 429; (c) You must not attempt to reserve a campsite for future use by placing equipment or other items on the camp-site, or by personal appearance, with-out camping on and paying the re-quired fees for that campsite daily; (d) You must not camp on or place any equipment at a campsite that is posted or otherwise marked as ‘‘re-served’’ or ‘‘closed’’ by an authorized official without a valid reservation for that campsite, except as allowed by a permit issued under subpart D of this part 423; and (e) You must not dig in or level any ground, or erect any structure other than a tent, in a designated camp-ground. § 423.34 Sanitation. (a) You must not bring or improperly dispose of refuse on Reclamation facili-ties, lands, and waterbodies. Both the owner and the person bringing or dis-posing refuse may be issued a citation for violating this provision. (b) Campers, picnickers, and all other persons using Reclamation lands must keep their sites free of trash and litter during the period of occupancy and must remove all personal equipment and clean their sites before departure. (c) You must not place or construct a toilet or latrine such that its lowest point is lower than the high water mark of any Reclamation waterbody, or within 150 feet horizontally of the high water mark of any Reclamation waterbody.
§ 423.23 Abandonment and impound-ment of personal property. (a) You must not abandon personal property of any kind in or on Reclama-tion facilities, lands, or waterbodies. (b) You must not store or leave unat-tended personal property of any kind. (1) Unattended personal property is presumed to be abandoned: (i) After a period of 24 hours; (ii) At any time after a posted clo-sure takes effect under subpart B of this part 423; or (iii) At any time for reasons of secu-rity, public safety, or resource protec-tion. (2) If personal property is presumed abandoned, an authorized official may impound it, store it, and assess a rea-sonable impoundment fee. (3) The impoundment fee must be paid before the authorized official will return the impounded property to you. (c) An authorized official may im-pound or destroy unattended personal property at any time if it: (1) Interferes with safety, operation, or management of Reclamation facili-ties, lands, or waterbodies; or (2) Presents a threat to persons or Reclamation project resources. (d) An authorized official may dis-pose of abandoned personal property in accordance with the procedures con-tained in title 41 CFR and applicable Reclamation and Department of the In-terior policy.