diff --git a/google/data_source_google_storage_project_service_account.go b/google/data_source_google_storage_project_service_account.go
index 96543973..04fa4a43 100644
--- a/google/data_source_google_storage_project_service_account.go
+++ b/google/data_source_google_storage_project_service_account.go
@@ -14,6 +14,15 @@ func dataSourceGoogleStorageProjectServiceAccount() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 			},
+			"user_project": {
+				Type:     schema.TypeString,
+				Optional: true,
+				ForceNew: true,
+			},
+			"email_address": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 		},
 	}
 }
@@ -26,12 +35,19 @@ func dataSourceGoogleStorageProjectServiceAccountRead(d *schema.ResourceData, me
 		return err
 	}
 
-	serviceAccount, err := config.clientStorage.Projects.ServiceAccount.Get(project).Do()
+	serviceAccountGetRequest := config.clientStorage.Projects.ServiceAccount.Get(project)
+
+	if v, ok := d.GetOk("user_project"); ok {
+		serviceAccountGetRequest = serviceAccountGetRequest.UserProject(v.(string))
+	}
+
+	serviceAccount, err := serviceAccountGetRequest.Do()
 	if err != nil {
 		return handleNotFoundError(err, d, "GCS service account not found")
 	}
 
 	d.Set("project", project)
+	d.Set("email_address", serviceAccount.EmailAddress)
 
 	d.SetId(serviceAccount.EmailAddress)
 
diff --git a/google/data_source_google_storage_project_service_account_test.go b/google/data_source_google_storage_project_service_account_test.go
index 57445531..bedbd735 100644
--- a/google/data_source_google_storage_project_service_account_test.go
+++ b/google/data_source_google_storage_project_service_account_test.go
@@ -18,7 +18,7 @@ func TestAccDataSourceGoogleStorageProjectServiceAccount_basic(t *testing.T) {
 			{
 				Config: testAccCheckGoogleStorageProjectServiceAccount_basic,
 				Check: resource.ComposeTestCheckFunc(
-					resource.TestCheckResourceAttrSet(resourceName, "id"),
+					resource.TestCheckResourceAttrSet(resourceName, "email_address"),
 				),
 			},
 		},
@@ -26,5 +26,6 @@ func TestAccDataSourceGoogleStorageProjectServiceAccount_basic(t *testing.T) {
 }
 
 const testAccCheckGoogleStorageProjectServiceAccount_basic = `
-data "google_storage_project_service_account" "gcs_account" { }
+data "google_storage_project_service_account" "gcs_account" {
+}
 `
diff --git a/google/resource_storage_notification_test.go b/google/resource_storage_notification_test.go
index 810648a1..6a6b8f11 100644
--- a/google/resource_storage_notification_test.go
+++ b/google/resource_storage_notification_test.go
@@ -13,8 +13,7 @@ import (
 )
 
 var (
-	gcsServiceAccount = fmt.Sprintf("serviceAccount:%s@gs-project-accounts.iam.gserviceaccount.com", os.Getenv("GOOGLE_PROJECT"))
-	payload           = "JSON_API_V1"
+	payload = "JSON_API_V1"
 )
 
 func TestAccStorageNotification_basic(t *testing.T) {
@@ -185,14 +184,17 @@ resource "google_storage_bucket" "bucket" {
 resource "google_pubsub_topic" "topic" {
 	name = "%s"
 }
+
 // We have to provide GCS default storage account with the permission
 // to publish to a Cloud Pub/Sub topic from this project
 // Otherwise notification configuration won't work
+data "google_storage_project_service_account" "gcs_account" {}
+
 resource "google_pubsub_topic_iam_binding" "binding" {
 	topic   = "${google_pubsub_topic.topic.name}"
 	role    = "roles/pubsub.publisher"
 		  
-	members = ["%s"]
+	members = ["serviceAccount:${data.google_storage_project_service_account.gcs_account.email_address}"]
 }
 
 resource "google_storage_notification" "notification" {
@@ -210,7 +212,7 @@ resource "google_storage_notification" "notification_with_prefix" {
 	depends_on         = ["google_pubsub_topic_iam_binding.binding"]
 }
 
-`, bucketName, topicName, gcsServiceAccount)
+`, bucketName, topicName)
 }
 
 func testGoogleStorageNotificationOptionalEventsAttributes(bucketName, topicName, topic, eventType1, eventType2 string) string {
@@ -222,14 +224,17 @@ resource "google_storage_bucket" "bucket" {
 resource "google_pubsub_topic" "topic" {
 	name = "%s"
 }
+
 // We have to provide GCS default storage account with the permission
 // to publish to a Cloud Pub/Sub topic from this project
 // Otherwise notification configuration won't work
+data "google_storage_project_service_account" "gcs_account" {}
+
 resource "google_pubsub_topic_iam_binding" "binding" {
 	topic       = "${google_pubsub_topic.topic.name}"
 	role        = "roles/pubsub.publisher"
 		  
-	members     = ["%s"]
+	members     = ["serviceAccount:${data.google_storage_project_service_account.gcs_account.email_address}"]
 }
 
 resource "google_storage_notification" "notification" {
@@ -243,5 +248,5 @@ resource "google_storage_notification" "notification" {
 	depends_on        = ["google_pubsub_topic_iam_binding.binding"]
 }
 
-`, bucketName, topicName, gcsServiceAccount, eventType1, eventType2)
+`, bucketName, topicName, eventType1, eventType2)
 }
diff --git a/website/docs/d/google_storage_project_service_account.html.markdown b/website/docs/d/google_storage_project_service_account.html.markdown
index 11f339b0..6c9bf86d 100644
--- a/website/docs/d/google_storage_project_service_account.html.markdown
+++ b/website/docs/d/google_storage_project_service_account.html.markdown
@@ -8,9 +8,13 @@ description: |-
 
 # google\_storage\_project\_service\_account
 
-Use this data source to get the email address of the project's Google Cloud Storage service account.
- For more information see 
-[API](https://cloud.google.com/storage/docs/json_api/v1/projects/serviceAccount).
+Get the email address of a project's unique Google Cloud Storage service account.
+
+Each Google Cloud project has a unique service account for use with Google Cloud Storage. Only this
+special service account can be used to set up `google_storage_notification` resources.
+
+For more information see
+[the API reference](https://cloud.google.com/storage/docs/json_api/v1/projects/serviceAccount).
 
 ## Example Usage
 
@@ -21,7 +25,7 @@ resource "google_pubsub_topic_iam_binding" "binding" {
 	topic       = "${google_pubsub_topic.topic.name}"
 	role        = "roles/pubsub.publisher"
 		  
-	members     = ["${data.google_storage_project_service_account.gcs_account.id}"]
+	members     = ["serviceAccount:${data.google_storage_project_service_account.gcs_account.email_address}"]
 }
 ```
 
@@ -29,10 +33,14 @@ resource "google_pubsub_topic_iam_binding" "binding" {
 
 The following arguments are supported:
 
-* `project` - (Optional) The project in which the resource belongs. If it is not provided, the provider project is used.
+* `project` - (Optional) The project the unique service account was created for. If it is not provided, the provider project is used.
+
+* `user_project` - (Optional) The project the lookup originates from. This field is used if you are making the request
+from a different account than the one you are finding the service account for.
 
 ## Attributes Reference
 
 The following attributes are exported:
 
-* `id` - The ID of the service account, which is its email address
+* `email_address` - The email address of the service account. This value is often used to refer to the service account
+in order to grant IAM permissions.
diff --git a/website/docs/r/storage_notification.html.markdown b/website/docs/r/storage_notification.html.markdown
index 6076e269..15985f29 100644
--- a/website/docs/r/storage_notification.html.markdown
+++ b/website/docs/r/storage_notification.html.markdown
@@ -14,29 +14,15 @@ Creates a new notification configuration on a specified bucket, establishing a f
 and 
 [API](https://cloud.google.com/storage/docs/json_api/v1/notifications).
 
+In order to enable notifications, a special Google Cloud Storage service account unique to the project
+must have the IAM permission "projects.topics.publish" for a Cloud Pub/Sub topic in the project. To get the service
+account's email address, use the `google_storage_project_service_account` datasource's `email_address` value, and see below
+for an example of enabling notifications by granting the correct IAM permission. See
+[the notifications documentation](https://cloud.google.com/storage/docs/gsutil/commands/notification) for more details.
+
 ## Example Usage
 
 ```hcl
-data "google_storage_project_service_account" "gs_account" {}
-
-resource "google_storage_bucket" "bucket" {
-	name = "default_bucket"
-}
-		
-resource "google_pubsub_topic" "topic" {
-	name = "default_topic"
-}
-
-// In order to enable notifications, the Google Cloud Storage service account unique to each project
-// must have the IAM permission "projects.topics.publish" to a Cloud Pub/Sub topic from this project.
-// https://cloud.google.com/storage/docs/gsutil/commands/notification
-
-resource "google_pubsub_topic_iam_binding" "binding" {
-	topic       = "${google_pubsub_topic.topic.name}"
-	role        = "roles/pubsub.publisher"
-	members     = ["serviceAccount:${data.google_storage_project_service_account.gs_account.id}"]
-}
-
 resource "google_storage_notification" "notification" {
 	bucket            = "${google_storage_bucket.bucket.name}"
 	payload_format    = "JSON_API_V1"
@@ -47,6 +33,27 @@ resource "google_storage_notification" "notification" {
 	}
 	depends_on        = ["google_pubsub_topic_iam_binding.binding"]
 }
+
+// Enable notifications by giving the correct IAM permission to the unique service account.
+
+data "google_storage_project_service_account" "gcs_account" {}
+
+resource "google_pubsub_topic_iam_binding" "binding" {
+	topic       = "${google_pubsub_topic.topic.name}"
+	role        = "roles/pubsub.publisher"
+	members     = ["serviceAccount:${data.google_storage_project_service_account.gcs_account.email_address}"]
+}
+
+// End enabling notifications
+
+
+resource "google_storage_bucket" "bucket" {
+	name = "default_bucket"
+}
+
+resource "google_pubsub_topic" "topic" {
+	name = "default_topic"
+}
 ```
 
 ## Argument Reference