diff --git a/doc/source/PreConfiguredSites.rst b/doc/source/PreConfiguredSites.rst
index e4a0cb7a9..80dcf403b 100644
--- a/doc/source/PreConfiguredSites.rst
+++ b/doc/source/PreConfiguredSites.rst
@@ -28,7 +28,7 @@ Ready-to-use spack-stack 1.5.1 installations are available on the following, ful
 |                     +----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
 | NCAR-Wyoming        | Cheyenne                         | GCC, Intel      | ``/glade/work/epicufsrt/contrib/spack-stack/cheyenne/spack-stack-1.5.0/envs/{unified-env,ufs-env}``     | Cam Book / Dom Heinzeller     |
 |                     +----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
-|                     | Derecho                          | Intel           | ``/glade/work/epicufsrt/contrib/spack-stack/derecho/spack-stack-1.5.1/envs/unified-env-intel-test``     | Mark Potts / Dom Heinzeller   |
+|                     | Derecho                          | GCC, Intel      | ``/glade/work/epicufsrt/contrib/spack-stack/derecho/spack-stack-1.5.1/envs/unified-env``                | Dom Heinzeller / Mark Potts   |
 +---------------------+----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
 | NOAA (NCEP)         | Acorn                            | Intel           | ``/lfs/h1/emc/nceplibs/noscrub/spack-stack/spack-stack-1.5.0/envs/unified-env``                         | Hang Lei / Alex Richert       |
 +---------------------+----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
@@ -42,7 +42,7 @@ Ready-to-use spack-stack 1.5.1 installations are available on the following, ful
 +---------------------+----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
 |                     | Narwhal                          | Intel           | ``/p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.1/envs/unified-env-intel-2021.4.0``               | Dom Heinzeller / Sarah King   |
 |                     +----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
-|                     | Narwhal                          | GCC             | ``/p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.0/envs/unified-env-gcc-10.3.0``                   | Dom Heinzeller / Sarah King   |
+|                     | Narwhal                          | GCC             | ``/p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.1/envs/unified-env-gcc-10.3.0``                   | Dom Heinzeller / Sarah King   |
 | U.S. Navy (HPCMP)   +----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
 |                     | Nautilus                         | Intel^*         | ``/p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.0/envs/unified-env``                              | Dom Heinzeller / Sarah King   |
 |                     +----------------------------------+-----------------+---------------------------------------------------------------------------------------------------------+-------------------------------+
@@ -233,11 +233,11 @@ With GNU, the following is required for building new spack environments and for
    module load ecflow/5.8.4
    module load mysql/8.0.31
 
-For ``spack-stack-1.5.0`` with GNU, load the following modules after loading the above modules.
+For ``spack-stack-1.5.1`` with GNU, load the following modules after loading the above modules.
 
 .. code-block:: console
 
-   module use /p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.0/envs/unified-env-gcc-10.3.0/install/modulefiles/Core
+   module use /p/app/projects/NEPTUNE/spack-stack/spack-stack-1.5.1/envs/unified-env-gcc-10.3.0/install/modulefiles/Core
    module load stack-gcc/10.3.0
    module load stack-cray-mpich/8.1.14
    module load stack-python/3.10.8
@@ -385,12 +385,22 @@ For ``spack-stack-1.5.1`` with Intel, load the following modules after loading e
 
 .. code-block:: console
 
-   module use /glade/work/epicufsrt/contrib/spack-stack/derecho/spack-stack-1.5.1/envs/unified-env-intel-test/install/modulefiles/Core
+   module use /glade/work/epicufsrt/contrib/spack-stack/derecho/spack-stack-1.5.1/envs/unified-env/install/modulefiles/Core
    module load stack-intel/2021.10.0
    module load stack-cray-mpich/8.1.25
    module load stack-python/3.10.8
    module available
 
+For ``spack-stack-1.5.1`` with GNU, load the following modules after loading ecflow and mysql:
+
+.. code-block:: console
+
+   module use /glade/work/epicufsrt/contrib/spack-stack/derecho/spack-stack-1.5.1/envs/unified-env/install/modulefiles/Core
+   module load stack-gcc/12.2.0
+   module load stack-cray-mpich/8.1.25
+   module load stack-python/3.10.8
+   module available
+
 .. note::
    CISL restricts the amount of memory available for processes on the login nodes. For example, it is impossible to compile JEDI with even one task (``make -j1``) with the Intel compiles in release mode (``-O2``). We therefore recommend compiling on compute nodes using interactive jobs, if possible.