diff --git a/lib/code_corps/helpers/filter_helpers.ex b/lib/code_corps/helpers/filter_helpers.ex
index 9ec6860b2..35a37a757 100644
--- a/lib/code_corps/helpers/filter_helpers.ex
+++ b/lib/code_corps/helpers/filter_helpers.ex
@@ -1,57 +1,19 @@
 defmodule CodeCorps.FilterHelpers do
   use CodeCorps.Web, :model
 
+  import CodeCorps.StringHelpers, only: [coalesce_id_string: 1, coalesce_string: 1]
+
   def id_filter(query, id_list) do
     ids = id_list |> coalesce_id_string
     query |> where([object], object.id in ^ids)
   end
 
-  def limit_filter(query, count) do
-    query |> limit(^count)
-  end
-
-  def number_as_id_filter(query, number) do
-    query |> where([object], object.number == ^number)
-  end
-
   def organization_filter(query, organization_id) do
     query |> where([object], object.organization_id == ^organization_id)
   end
 
-  def project_filter(query, project_id) do
-    query |> where([object], object.project_id == ^project_id)
-  end
-
   def role_filter(query, roles_list) do
     roles = roles_list |> coalesce_string
     query |> where([object], object.role in ^roles)
   end
-
-  def task_filter(query, task_id) do
-    query |> where([object], object.task_id == ^task_id)
-  end
-
-  def task_status_filter(query, status) do
-    query |> where([object], object.status == ^status)
-  end
-
-  def task_type_filter(query, task_type_list) do
-    task_types = task_type_list |> coalesce_string
-    query |> where([object], object.task_type in ^task_types)
-  end
-
-  def title_filter(query, title) do
-    query |> where([object], ilike(object.title, ^"%#{title}%"))
-  end
-
-  defp coalesce_id_string(string) do
-    string
-    |> String.split(",")
-    |> Enum.map(&String.to_integer(&1))
-  end
-
-  defp coalesce_string(string) do
-    string
-    |> String.split(",")
-  end
 end
diff --git a/web/controllers/controller_helpers.ex b/lib/code_corps/helpers/string_helpers.ex
similarity index 82%
rename from web/controllers/controller_helpers.ex
rename to lib/code_corps/helpers/string_helpers.ex
index a40098404..382085a5d 100644
--- a/web/controllers/controller_helpers.ex
+++ b/lib/code_corps/helpers/string_helpers.ex
@@ -1,4 +1,4 @@
-defmodule CodeCorps.ControllerHelpers do
+defmodule CodeCorps.StringHelpers do
   def coalesce_id_string(string) do
     string
     |> String.split(",")
diff --git a/web/models/comment.ex b/web/models/comment.ex
index d70eb3d26..f96c33981 100644
--- a/web/models/comment.ex
+++ b/web/models/comment.ex
@@ -1,6 +1,6 @@
 defmodule CodeCorps.Comment do
   use CodeCorps.Web, :model
-  import CodeCorps.ModelHelpers
+
   alias CodeCorps.MarkdownRenderer
 
   schema "comments" do
@@ -31,8 +31,4 @@ defmodule CodeCorps.Comment do
     |> assoc_constraint(:task)
     |> assoc_constraint(:user)
   end
-
-  def index_filters(query, params) do
-    query |> task_filter(params)
-  end
 end
diff --git a/web/models/model_helpers.ex b/web/models/model_helpers.ex
index eb9025b1f..c14cce638 100644
--- a/web/models/model_helpers.ex
+++ b/web/models/model_helpers.ex
@@ -1,7 +1,7 @@
 defmodule CodeCorps.ModelHelpers do
   use CodeCorps.Web, :model
 
-  import CodeCorps.ControllerHelpers
+  import CodeCorps.StringHelpers, only: [coalesce_id_string: 1, coalesce_string: 1]
 
   def generate_slug(changeset, value_key, slug_key) do
     case changeset do
@@ -35,11 +35,6 @@ defmodule CodeCorps.ModelHelpers do
   end
   def number_as_id_filter(query, _), do: query
 
-  def organization_filter(query, %{"organization_id" => organization_id}) do
-    query |> where([object], object.organization_id == ^organization_id)
-  end
-  def organization_filter(query, _), do: query
-
   def task_type_filter(query, %{"task_type" => task_type_list}) do
     task_types = task_type_list |> coalesce_string
     query |> where([object], object.task_type in ^task_types)
@@ -61,12 +56,6 @@ defmodule CodeCorps.ModelHelpers do
   end
   def project_filter(query, _), do: query
 
-  def role_filter(query, %{"role" => roles}) do
-    roles = roles |> coalesce_string
-    query |> where([object], object.role in ^roles)
-  end
-  def role_filter(query, _), do: query
-
   def title_filter(query, %{"query" => title}) do
     query |> where([object], ilike(object.title, ^"%#{title}%"))
   end
diff --git a/web/models/organization_membership.ex b/web/models/organization_membership.ex
index 76793479c..581adab05 100644
--- a/web/models/organization_membership.ex
+++ b/web/models/organization_membership.ex
@@ -4,7 +4,6 @@ defmodule CodeCorps.OrganizationMembership do
   """
 
   use CodeCorps.Web, :model
-  import CodeCorps.ModelHelpers
 
   schema "organization_memberships" do
     field :role, :string