diff --git a/configs/sites/tier1/sandy/compilers.yaml b/configs/sites/tier1/sandy/compilers.yaml
deleted file mode 100644
index b86ff0a33..000000000
--- a/configs/sites/tier1/sandy/compilers.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-compilers:
-- compiler:
-    spec: gcc@=9.3.0
-    paths:
-      cc: /software/depot/gcc-9.3.0/bin/gcc
-      cxx: /software/depot/gcc-9.3.0/bin/g++
-      f77: /software/depot/gcc-9.3.0/bin/gfortran
-      fc: /software/depot/gcc-9.3.0/bin/gfortran
-    flags: {}
-    operating_system: centos7
-    target: x86_64
-    modules: []
-    environment: {}
-    extra_rpaths: []
diff --git a/configs/sites/tier1/sandy/config.yaml b/configs/sites/tier1/sandy/config.yaml
deleted file mode 100644
index 84fe05ab9..000000000
--- a/configs/sites/tier1/sandy/config.yaml
+++ /dev/null
@@ -1,2 +0,0 @@
-config:
-  build_jobs: 8
diff --git a/configs/sites/tier1/sandy/mirrors.yaml b/configs/sites/tier1/sandy/mirrors.yaml
deleted file mode 100644
index c48f33bf1..000000000
--- a/configs/sites/tier1/sandy/mirrors.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-mirrors:
-  local-source:
-    fetch:
-      url: file:///gpfs/fs1/neptune/spack-stack/source-cache
-      access_pair:
-      - null
-      - null
-      access_token: null
-      profile: null
-      endpoint_url: null
-    push:
-      url: file:///gpfs/fs1/neptune/spack-stack/source-cache
-      access_pair:
-      - null
-      - null
-      access_token: null
-      profile: null
-      endpoint_url: null
diff --git a/configs/sites/tier1/sandy/modules.yaml b/configs/sites/tier1/sandy/modules.yaml
deleted file mode 100644
index aeb254c2e..000000000
--- a/configs/sites/tier1/sandy/modules.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-modules:
-  default:
-    enable::
-    - tcl
-    tcl:
-      include:
-      # List of packages for which we need modules that are blacklisted by default
-      - python
diff --git a/configs/sites/tier1/sandy/packages.yaml b/configs/sites/tier1/sandy/packages.yaml
deleted file mode 100644
index 1af1ab029..000000000
--- a/configs/sites/tier1/sandy/packages.yaml
+++ /dev/null
@@ -1,113 +0,0 @@
-packages:
-  all:
-    compiler:: [gcc@9.3.0]
-    providers: 
-      mpi:: [openmpi@4.0.5]
-
-### MPI, Python, MKL
-  mpi:
-    buildable: False
-  openmpi:
-    externals:
-    - spec: openmpi@4.0.5%gcc@9.3.0
-      prefix: /software7/depot/openmpi-4.0.5
-
-### All other external packages listed alphabetically
-  autoconf:
-    externals:
-    - spec: autoconf@2.69
-      prefix: /usr
-  automake:
-    externals:
-    - spec: automake@1.16.1
-      prefix: /usr
-  binutils:
-    externals:
-    - spec: binutils@2.30.117
-      prefix: /usr
-  bison:
-    externals:
-    - spec: bison@3.0.4
-      prefix: /usr
-  coreutils:
-    externals:
-    - spec: coreutils@8.30
-      prefix: /usr
-  curl:
-    externals:
-    - spec: curl@7.61.1
-      prefix: /usr
-  diffutils:
-    externals:
-    - spec: diffutils@3.6
-      prefix: /usr
-  findutils:
-    externals:
-    - spec: findutils@4.6.0
-      prefix: /usr
-  flex:
-    externals:
-    - spec: flex@2.6.1+lex
-      prefix: /usr
-  gawk:
-    externals:
-    - spec: gawk@4.2.1
-      prefix: /usr
-  git:
-    externals:
-    - spec: git@2.39.2+tcltk
-      prefix: /software8/depot/git-2.39.2
-  git-lfs:
-    externals:
-    - spec: git-lfs@3.3.0
-      prefix: /software8/depot/git-2.39.2
-  gmake:
-    externals:
-    - spec: gmake@4.2.1
-      prefix: /usr
-  groff:
-    externals:
-    - spec: groff@1.22.3
-      prefix: /usr
-  libtool:
-    externals:
-    - spec: libtool@2.4.6
-      prefix: /usr
-  m4:
-    externals:
-    - spec: m4@1.4.18
-      prefix: /usr
-  openssh:
-    externals:
-    - spec: openssh@8.0p1
-      prefix: /usr
-  # Don't use external openssl, too old
-  #openssl:
-  #  externals:
-  #  - spec: openssl@1.1.1k
-  #    prefix: /usr
-  # Can't use with py-xnrl
-  #perl:
-  #  externals:
-  #  - spec: perl@5.26.3~cpanm+shared+threads
-  #    prefix: /usr
-  pkgconf:
-    externals:
-    - spec: pkgconf@1.4.2
-      prefix: /usr
-  subversion:
-    externals:
-    - spec: subversion@1.10.2
-      prefix: /usr
-  tar:
-    externals:
-    - spec: tar@1.30
-      prefix: /usr
-  texinfo:
-    externals:
-    - spec: texinfo@6.5
-      prefix: /usr
-  wget:
-    externals:
-    - spec: wget@1.19.5
-      prefix: /usr