diff --git a/H/HydroModelTools/Compat.toml b/H/HydroModelTools/Compat.toml
new file mode 100644
index 000000000000000..5e27e0790cac2a7
--- /dev/null
+++ b/H/HydroModelTools/Compat.toml
@@ -0,0 +1,17 @@
+[0]
+CSV = "0.10"
+ComponentArrays = "0.15"
+DataFrames = "1"
+Dates = "1"
+IterTools = "1"
+NamedTupleTools = "0.14"
+Optimization = "4"
+OptimizationBBO = "0.4"
+OptimizationOptimisers = "0.3"
+OrdinaryDiffEq = "6"
+ProgressMeter = "1"
+Reexport = "1"
+SciMLSensitivity = "7"
+Statistics = "1"
+TOML = "1"
+julia = "1.10.0-1"
diff --git a/H/HydroModelTools/Deps.toml b/H/HydroModelTools/Deps.toml
new file mode 100644
index 000000000000000..4171f818d3389c8
--- /dev/null
+++ b/H/HydroModelTools/Deps.toml
@@ -0,0 +1,16 @@
+[0]
+CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
+ComponentArrays = "b0b7db55-cfe3-40fc-9ded-d10e2dbeff66"
+DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
+Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
+IterTools = "c8e1da08-722c-5040-9ed9-7db0dc04731e"
+NamedTupleTools = "d9ec5142-1e00-5aa0-9d6a-321866360f50"
+Optimization = "7f7a1694-90dd-40f0-9382-eb1efda571ba"
+OptimizationBBO = "3e6eede4-6085-4f62-9a71-46d9bc1eb92b"
+OptimizationOptimisers = "42dfb2eb-d2b4-4451-abcd-913932933ac1"
+OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
+ProgressMeter = "92933f4c-e287-5a05-a399-4b506db050ca"
+Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
+SciMLSensitivity = "1ed8b502-d754-442c-8d5d-10ac956f44a1"
+Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
diff --git a/H/HydroModelTools/Package.toml b/H/HydroModelTools/Package.toml
new file mode 100644
index 000000000000000..55ee5117592e1d0
--- /dev/null
+++ b/H/HydroModelTools/Package.toml
@@ -0,0 +1,3 @@
+name = "HydroModelTools"
+uuid = "31f4d4b3-d71d-422d-8932-b4ab24c6e7e3"
+repo = "https://github.com/chooron/HydroModelTools.jl.git"
diff --git a/H/HydroModelTools/Versions.toml b/H/HydroModelTools/Versions.toml
new file mode 100644
index 000000000000000..5fe77d5287b6ac9
--- /dev/null
+++ b/H/HydroModelTools/Versions.toml
@@ -0,0 +1,2 @@
+["0.1.0"]
+git-tree-sha1 = "b878d42132b56c6c673fd72d66ec3c6a0bf5d4fd"
diff --git a/Registry.toml b/Registry.toml
index 15edff3796acad8..2a76b1b4948bf85 100644
--- a/Registry.toml
+++ b/Registry.toml
@@ -2319,6 +2319,7 @@ some amount of consideration when choosing package names.
 31df374a-5bce-54dc-914a-f687be069de8 = { name = "Getopt", path = "G/Getopt" }
 31e2f376-db9e-427a-b76e-a14f56347a14 = { name = "PredefinedDynamicalSystems", path = "P/PredefinedDynamicalSystems" }
 31ece079-7405-46d1-96b6-7aef44ad4713 = { name = "CiteDown", path = "C/CiteDown" }
+31f4d4b3-d71d-422d-8932-b4ab24c6e7e3 = { name = "HydroModelTools", path = "H/HydroModelTools" }
 31f4e45d-be81-5be7-b2dd-bc577b4f7be8 = { name = "DualMatrixTools", path = "D/DualMatrixTools" }
 31f734f8-188a-4ce0-8406-c8a06bd891cd = { name = "ArrowTypes", path = "A/ArrowTypes" }
 31fab0eb-bb78-4d15-8993-a8083bba6d27 = { name = "FluxNLPModels", path = "F/FluxNLPModels" }